Mars and Jupiter in the Morning


Jupiter and Mars at Dawn

Mars and Jupiter are meeting up in the morning sky. Soon they’ll be joined by the Moon.

Here’s a heads up for one of the best planet conjunctions of the year. Mars and Jupiter are now close together in the dawn sky to the south, and getting closer!

Above is the actual view on the morning of January 4, with Jupiter the brightest of a trio of objects. Mars is reddish and in the middle. The object at right is the star Alpha Librae, also known as Zubenelgenubi in Libra.

Jan 6 Morning Sky
Looking south-southeast on January 6

As shown in the simulation above, on the morning of January 6 Mars and Jupiter will be only 1/3rd of a degree apart (20 arc minutes), so close that dimmer Mars might not be obvious to the naked eye next to bright Jupiter. But use binoculars to show the planet pair.

The next morning, on January 7, they will appear almost as close, as Jupiter climbs higher past Mars.

Jan 11 Morning Sky
Looking south-southeast on January 11

As shown here, on the morning of January 11 the waning crescent Moon will sit only 4 degrees from the planet pair, with all three worlds gathered close enough for binoculars to frame the scene.

With sunrise coming late on winter mornings, it doesn’t take an early rise to take in the dawn scene. Make a note to take a look about 6:30 to 7:00 a.m. over the next week.


POSTSCRIPT added January 6:

Here’s the real scene from the morning of January 6, with Mars and Jupiter just 16 arc minutes apart, very close but still easy to distinguish  with the naked eye. Jupiter did not overwhelm Mars.

Jupiter and Mars in Conjunction at Dawn

Thanks and Clear skies!

— Alan, January 4, 2018 / © 2018 Alan Dyer / amazingsky.com

The Ghostly Glow of Gegenschein


Northern Spring Sky Panorama

It takes a dark spring night to see it well, but now lurking near Jupiter is a ghostly sky glow called Gegenschein. 

This diffuse glow lies directly opposite the Sun. It is caused by sunlight reflecting off interplanetary dust particles in the outer solar system. They reflect light more effectively at the anti-Sun point where each dust particle is fully lit by the Sun.

Like the Sun, the Gegenschein moves around the sky along the ecliptic, moving about a degree from west to east from night to night. March and April provide good nights for seeing the Gegenschein as it then lies in an area of sky far from the Milky Way.

Even so, it is very subtle to the unaided eye. Look south at about 1 a.m. local daylight time.

However, this year, in early April the Gegenschein will be more difficult as it will then lie right on top of Jupiter, as that planet reaches its point opposite the Sun on April 7. Jupiter will then be superimposed on the Gegenschein.

The main image at top is a 7-image vertical panorama of the spring sky, from Corvus and Virgo above the horizon, up past Leo, into Ursa Major and the Big Dipper overhead. Spica lies below bright Jupiter, Arcturus in Böotes is at left, while Regulus in Leo is at right. The grouping of stars near centre is the Coma Berenices star cluster.

Orion over the Old Barn

Earlier in the night, I shot the sky’s other main glow – the Milky Way, as the winter portion of the Milky Way around Orion set into the southwest.

But over in the west, at the right edge of the frame, is the Zodiacal Light, caused by the same dust particles that create the Gegenschein, but that are located in the inner solar system between us and the Sun.

The Zodiacal Light is better depicted in images in my previous post from Dinosaur Park

We bid adieu to the winter Milky Way now. As it departs we are left with an evening sky without the Milky Way visible at all. As seen from northern latitudes it lies along the horizon.

But later in spring, late at night, we’ll see the summer Milky Way rising, beginning its seasons of prominence until late autumn.

— Alan, March 19, 2017 / © 2017 Alan Dyer / AmazingSky.com 

 

A Panorama of the Spring and Winter Sky


Winter and Spring Sky Panorama

I present a sweeping panorama of the winter and spring stars on a February night. 

The lead image is a panorama I shot last Saturday, February 27 that takes in about 200° of sky from northeast to west, and nearly to the zenith. It encompasses most of the northern spring and winter stars and constellations.

I’ve added the labels to help you pick out the celestial highlights. The winter sky, containing Orion as the central constellation, is at right setting into the west. This area of sky contains a rich collection of bright stars and identifiable constellations.

The left side of the sky contains the spring constellations, now coming into view in the east. Note how that area of sky is sparsely populated by bright stars. You can see the Big Dipper, Regulus in Leo, and Arcturus rising at lower left.

The reason for the difference is the Milky Way – you can see it at right arcing up from the southern horizon passing by Orion and through Gemini, Taurus and Auriga. In that direction we are looking into the outlying spirals arms of our galaxy, toward rich areas of star formation.

To the east, at left, we are looking at right angles out of the plane of our spiral galaxy, toward the galactic North Pole, here just left of Leo. In that direction there are very few bright stars between us and the starless depths of intergalactic space. The spring sky is rather blank compared to the rich winter sky.

But you can see Jupiter, the brightest object in view here, and now prominent in the evening sky.

Note one other subtle glow just above Jupiter. That diffuse glow is the Gegenschein, caused by sunlight reflecting off interplanetary dust opposite the Sun in our solar system and in the plane of the ecliptic.

Jupiter is just east (left) of the Gegenschein here, as Jupiter was then just over a week before its date of opposition, March 8. By then the Gegenschein will have moved to superimpose right over Jupiter, as both then lie opposite the Sun.

Winter and Spring Sky Panorama

I shot this scene from home on February 27, 2016, using the new iOptron iPano motorized “gigapan” unit, which I programmed to move and shoot 36 exposures with the Canon 5D MkII and 35mm lens, arranged in 4 rows high with 9 panels wide in each row from east to west. The result is a huge mosaic, 24,000 by 10,000 pixels.

Each exposure was 25 seconds at f/2 and at ISO 3200. The camera was not tracking the sky. I stitched the 36 segments with PTGui using its Spherical Fisheye projection. The image has black margins but I think the circular format is more suggestive of the spherical dome of the sky above and around you. But that’s me, a longtime planetarium show producer.

Next time I will shoot the zenith cap images as well!

— Alan, February 29, 2016 / © 2016 Alan Dyer / www.amazingsky.com

 

Circles and Lines in the Dawn Sky


A classic 22° ice crystal halo around the waning crescent Moon, here overexposed, with the Moon between Jupiter and Mars in the morning sky on December 5, 2015. Seeing a halo around a crescent Moon is somewhat rare as they usually require the brighter light of the Full Moon. Venus is the brightest object at bottom closest to the horizon. The three planets, along with the stars Spica (above Venus) and Regulus (at top of frame) define the line of the ecliptic here in the dawn late autumn / early winter sky. I captured this scene from southeast Arizona near the Arizona Sky Village at Portal. This is a stack of 4 exposures from long to short (8s to 1/2s) to encompass the great range in brightness and not overexpose the crescent Moon too much. Images were layered in Photoshop and masked with luminosity masks. Automatic HDR techniques did not work well as the shortest image was too dark for ACR to find content to register in Merge ot HDR, and in Photoshop the HDR Pro module left visible edge artifacts. The camera was on the iOptron Sky Tracker to follow the sky and register the sky for all the exposures, thus the slightly blurred ground. Taken with the Canon 6D and 15mm full-frame fish-eye lens.

Cloud hid Comet Catalina but added a halo around the waning Moon, intersected by the line of the ecliptic.

I’m in Arizona, just inside the state line with New Mexico, on a quest to shoot Comet Catalina at dawn. Clouds prevented any view of the faint comet this morning but provided a fine consolation prize.

The waning crescent Moon was surrounded by an ice crystal halo, a rare sight around a thin Moon. The Moon was between Mars and Jupiter, heading toward a conjunction with Venus, below, on December 7.

The line of Venus, Mars, the Moon, and Jupiter, plus the stars Spica and Regulus defined the line of the ecliptic beautifully in the pre-dawn sky.

A classic 22° ice crystal halo around the waning crescent Moon, here overexposed, with the Moon between Jupiter and Mars in the morning sky on December 5, 2015. Seeing a halo around a crescent Moon is somewhat rare as they usually require the brighter light of the Full Moon. Venus is the brightest object at bottom closest to the horizon. The three planets, along with the stars Spica (above Venus) and Regulus (at top of frame) define the line of the ecliptic here in the dawn late autumn / early winter sky. I captured this scene from southeast Arizona near the Arizona Sky Village at Portal. This is a stack of 4 exposures from long to short (8s to 1/2s) to encompass the great range in brightness and not overexpose the crescent Moon too much. Images were layered in Photoshop and masked with luminosity masks. Automatic HDR techniques did not work well as the shortest image was too dark for ACR to find content to register in Merge ot HDR, and in Photoshop the HDR Pro module left visible edge artifacts. The camera was on the iOptron Sky Tracker to follow the sky and register the sky for all the exposures, thus the slightly blurred ground. Taken with the Canon 6D and 15mm full-frame fish-eye lens.
This is a stack of 4 exposures from long to short (8s to 1/2s) to encompass the great range in brightness and not overexpose the crescent Moon too much. Images were layered in Photoshop and masked with luminosity masks. Automatic HDR techniques did not work well as the shortest image was too dark for ACR to find content to register in Merge ot HDR, and in Photoshop the HDR Pro module left visible edge artifacts.
The camera was on the iOptron Sky Tracker to follow the sky and register the sky for all the exposures, thus the slightly blurred ground. Taken with the Canon 6D and 15mm full-frame fish-eye lens.

It was a show of circles and lines, real and imagined, in the morning sky.

With luck, clouds will clear to reveal Comet Catalina, which is likely fainter and less spectacular than hoped. But such is the way of comets. Regardless of what the comet does, it is a good time to be in the desert southwest, typing this blog on a sunny front porch under blue desert skies.

— Alan, December 5, 2015 / © 2015 Alan Dyer / www.amazingsky.com

 

The Visible Ecliptic at Dawn


Venus (brightest), with dim Mars above it, then bright Jupiter, in a diagonal line across the dawn sky on November 14, 2015. Regulus and Leo are at top right, Arcturus in Bootes is at left, and Spica in Virgo is just rising at centre. Spica, Venus, Mars, Jupiter and Regulus more or less define the line of the ecliptic in the autumn morning sky here. This is a stack of 4 x 20 second exposures for the ground, to smooth noise, and one 20-second exposure for the sky, all with the Nikon D810a at ISO 1000 and Nikkor 14-24mm lens at f/2.8 and at 14mm

The morning planets are now strung out along the ecliptic, visualizing this line in the sky.

This was the view this morning, November 14, of the three dawn planets lined up along the ecliptic, with the stars Spica and Regulus also defining this imaginary line.

The ecliptic is the Earth’s orbital path around the Sun projected into the sky. So it is along this line that we see the Sun appear to move around the sky over a year. But it is also the path along which we find the seven other major planets – in this case, three of them: Venus, Mars and Jupiter.

These three worlds were clustered together in October, but are now spreading out along the ecliptic, as Venus drops lower but Mars and Jupiter climb higher.

The stars Spica and Regulus also lie along the ecliptic, where the Moon can occasionally pass in front of, or occult, these stars.

So the two stars and three planets are now nicely drawing the ecliptic line for us in the dawn sky. At this time of year, the ecliptic is also steeply angled above the eastern horizon.

The main image above is a stack of 4 x 20 second exposures for the ground, to smooth noise, and one 20-second exposure for the sky, all with the Nikon D810a at ISO 1000 and Nikkor 14-24mm lens at f/2.8 and at 14mm.

Venus (brightest), with dim Mars above it, then bright Jupiter, in a diagonal line across the dawn sky on November 14, 2015, with the Zodiacal Light barely visible in the brightening twilight sky. Arcturus is a left and Spica is just rising at centre. Corvus is just above the treetops at right. Spica, Venus, Mars and Jupiter more or less define the line of the ecliptic in the autumn morning sky here. This is a stack of 4 x 20 second exposures for the ground, to smooth noise, and one 20-second exposure for the sky, all with the Nikon D810a at ISO 1000 and Nikkor 14-24mm lens at f/2.8 and at 24mm
Venus (brightest), with dim Mars above it, then bright Jupiter, in a diagonal line across the dawn sky on November 14, 2015, with the Zodiacal Light barely visible in the brightening twilight sky. Arcturus is a left and Spica is just rising at centre. Corvus is just above the treetops at right. Spica, Venus, Mars and Jupiter more or less define the line of the ecliptic in the autumn morning sky here. This is a stack of 4 x 20 second exposures for the ground, to smooth noise, and one 20-second exposure for the sky, all with the Nikon D810a at ISO 1000 and Nikkor 14-24mm lens at f/2.8 and at 24mm

This image just above is with the same gear but with the lens at the 24mm setting to more tightly frame the planets.

Meanwhile, on the other side of the sky at dawn, Orion and his winter sky friends were setting into the west (image below).

Orion and the winter constellations setting over the old Farmhouse at home, in the dawn twilight on the morning of November 14, 2015. Canis Major and Sirius are at left; Taurus and Aldebaran and the Pleiades are at right. Procyon is at upper left.  This is a stack of 4 x 20 second exposoures for the ground to smooth noise and one 20-second exposure for the sky, all with the Nikon D810a at ISO 1600 and 14-24mm Nikkor zoom lens at f/2.8.
Orion and the winter constellations setting over the old Farmhouse at home, in the dawn twilight on the morning of November 14, 2015. Canis Major and Sirius are at left; Taurus and Aldebaran and the Pleiades are at right. Procyon is at upper left. This is a stack of 4 x 20 second exposoures for the ground to smooth noise and one 20-second exposure for the sky, all with the Nikon D810a at ISO 1600 and 14-24mm Nikkor zoom lens at f/2.8.

All the images here are shot with the Nikon D810a camera and the amazing Nikkor 14-24mm lens, two items in hand this month for testing and review. A thorough test will appear in future blogs.

Of course, as wonderful as the gear is, it cannot extract the ecliptic line and labels from the sky – those are added in Photoshop!

– Alan, November 14, 2015 / © 2015 Alan Dyer / amazingsky.com 

Three Planets and the Moon in the Morning


The waning crescent Moon below Jupiter, with that pair of worlds above the pairing of Venus (bright) and red Mars (just above Venus), all in the dawn sky, November 6, 2015.  This is a composite of 4 exposures: 30 seconds for the ground (to bring out detail there), 8 seconds for the sky (short enough to prevent star trailing), and 2 and 1/4 seconds for the Moon itself to prevent it from being totally blown out as a bright blob. All with the Nikon D750 at ISO 1600 and Sigma 24mm Art lens at f/4. Taken from home.

The waning crescent Moon joined the planet trio this morning for a fine sight in the dawn.

This was the scene on November 6 with the waning crescent Moon just below Jupiter, and those two worlds just above the pairing of bright Venus with dim red Mars.

On Saturday, November 7, the waning Moon will sit beside Venus for an even more striking conjunction.

The waning crescent Moon below Jupiter, with that pair of worlds above the pairing of Venus (bright) and red Mars (just above Venus), all in the dawn sky in Leo, November 6, 2015. The stars of Leo are above, including Regulus. This is a composite of 4 exposures: 15 seconds for the ground (to bring out detail there), 4 seconds for the sky (short enough to prevent star trailing), and 1 and 1/4 seconds for the Moon itself to prevent it from being totally blown out as a bright blob. All with the Nikon D750 at ISO 2000 and Sigma 24mm Art lens at f/4.5. Taken from home.
The waning crescent Moon below Jupiter, with that pair of worlds above the pairing of Venus (bright) and red Mars (just above Venus), all in the dawn sky in Leo, November 6, 2015. The stars of Leo are above, including Regulus.
This is a composite of 4 exposures: 15 seconds for the ground (to bring out detail there), 4 seconds for the sky (short enough to prevent star trailing), and 1 and 1/4 seconds for the Moon itself to prevent it from being totally blown out as a bright blob. All with the Nikon D750 at ISO 2000 and Sigma 24mm Art lens at f/4.5. Taken from home.

This meeting of the Moon with the planet trio more or less concludes the superb series of dawn sky conjunctions we’ve been enjoying over the last month.

The planets remain in the morning sky but now go their own ways as Mars and Jupiter climb higher, while Venus drops lower.

— Alan, November 6, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Dawn Dance of Planets Concludes


The planet trio of Venus (brightest), Jupiter (above Venus) and Mars (dim and red to the left of Venus), all in Leo in the morning sky on November 1, 2015, with the waning gibbous Moon illuminating the landscape and sky. Even in the moonlight, the Zodiacal Light seems to be faintly visible along the ecliptic defined by the line of planets.  This is a stack of 6 x 30-second exposures at f/5.6 and ISO 2500 for more depth of the field for the ground, plus a 13-second exposure at f/2.5 and ISO 800 to minimize star trailing. The ground exposures were mean combined in a stack to smooth noise. Diffraction spikes added with Astronomy Tools Actions for Photoshop.

The gathering of planets at dawn is coming to an end as Venus meets Mars.

This was the view this morning from home in southern Alberta of the trio of planets in the moonlit morning sky.

Venus is the brightest, while dim red Mars shines just to the left of Venus. Jupiter is above the Venus & Mars pairing, with all the planets shining in Leo.

The planet trio of Venus (brightest), Jupiter (above Venus) and Mars (dim and red to the left of Venus), all in Leo in the morning sky on November 1, 2015, with the waning gibbous Moon illuminating the landscape and sky. The stars of Leo, including Regulus, shine above the planets. This is a stack of 4 x 30-second exposures at f/5.6 and ISO 2000 for more depth of the field for the ground, plus a 10-second exposure at f/2.8 and ISO 2000 to minimize star trailing. The ground exposures were mean combined in a stack to smooth noise. Diffraction spikes added with Astronomy Tools Actions for Photoshop.

Mars and Venus will appear closest to each other on November 2 and 3. Then the group breaks apart as Venus descends but Mars and Jupiter climb higher.

But as they do so they are joined by the waning Moon, by then a thin crescent, on November 6, when the Moon shines near Jupiter, and November 7, when it joins Venus for a stunning dawn sky scene.

After that the morning planet dance comes to an end. But in two months, in early January, Venus will meet up with Saturn for a very close conjunction in the winter dawn sky on January 9.

— Alan, November 1, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Triangle of Planets in the Twilight


Mars, Venus and Jupiter (in that order from top to bottom) in a triangle, in conjunction, at an old farmstead near Vulcan, Alberta, in the morning twilight, October 28, 2015. Illumination is from the nearly Full Hunter’s Moon in the west. The trio of planets were in Leo in a fine conjunction not to be repeated until November 21, 2111. Almost all of Leo is visible here, with Regulus, the constellation’s brightest star, just to the right of the windmill blades at top. This is a stack of 6 exposures for the ground, mean combined to smooth noise, and one exposure for the sky, all  10 seconds at f/4 and ISO 800 with the Canon 6D and Canon 24mm lens.

This was the trio of planets at their best in the morning sky. 

On the morning of October 28, Mars, Venus and Jupiter formed a neat isosceles triangle in the twilight. Venus, the brightest, was in the middle, with Mars below and Jupiter above. The grouping shone amid the stars of Leo, with its brightest star, Regulus, above the windmill in the lead image above. The rest of Leo lies above the planets.

To capture the scene I drove west at 5 am to a farmstead I had shot at before, in June, to capture Venus and Jupiter, also then in Leo near Regulus, but in the evening sky looking west. Click here for that blog post from mid-June.

This morning, the Moon, just past full as the annual Hunter’s Moon, shone in the west off camera lighting the landscape.

Mars, Venus and Jupiter (in that order from top to bottom) in a triangle, in conjunction, over an old red barn near Vulcan, Alberta, in the morning twilight, October 28, 2015. Illumination is from the nearly Full Hunter’s Moon in the west. The trio of planets were in Leo in a fine conjunction not to be repeated until November 21, 2111.  This is a stack of 6 exposures for the ground, mean combined to smooth noise, and one exposure for the sky, all  10 seconds at f/4 and ISO 800 with the Canon 6D and Canon 24mm lens.

The dawn sky colours and the moonlit red barn made for a fine colour contrast.

After today, the planet configuration breaks up, as Venus descends to meet Mars on November 2 and 3, while Jupiter climbs higher. But another great morning sight awaits on November 7 when the waning crescent Moon will shine near the Venus-Mars pairing, with Jupiter above.

The conjunction of Mars, Venus and Jupiter (from bottom to top) in the dawn sky over the misty waters of Lake Macgregor in southern Alberta, on October 28, 2015. This is a single 1/4-second exposure at f/4 and ISO 400 with the Canon 6D and 24mm Canon lens.

On the way home I stopped at fog-bound Lake MacGregor to capture the planets in a brightening dawn sky over the misty waters.

This morning the three planets lay just 4.5 degrees apart, close enough to frame in high-power binoculars.

We won’t see these three planets this close to each other in a darkened sky — as opposed to being so close to the Sun we really can’t see them — until November 21, 2111.

Be sure to catch the dawn show while it lasts!

— Alan, October 28, 2015 / © 2015 Alan Dyer / www.amazingsky.com

A Stunning Gathering of Worlds


The conjunction of Venus (brightest), Jupiter (above Venus) and Mars (dimmer below Venus & Jupiter) looking east in the morning twilight on October 25, 2015, as seen from the west shore of Lake Annette, in Jasper National Park, Alberta. The mountain is the Watchtower. Morning mist covers the lake waters. Haze in the sky adds the natural glows around the planets — no filters were empolyed here. This is a layered stack of 4 images: 10, 5, 2.5 and 1.3-second exposures, with the longer exposure for the ground and the shorter exposures adding the sky to maintain tonal balance between the dark ground and bright sky. All with the 24mm lens and Canon 6D at ISO 400. It was not possible to capture the reflection of the planets in the water as they were too high in the sky.

Skies were clear at dawn this morning for a fabulous view of the rare conjunction of three planets. And I could not have been at a more photogenic site.

This was the view before dawn on October 25, as brilliant Venus and dimmer Jupiter shone just a degree apart in the dawn sky. Mars, much fainter, shines just below the close duo. The three planets could easily be contained in a high power binocular field.

Not until November 2111 will these three planets be this close together again in a darkened sky.

Indeed, Venus could not have been higher, as it is just now reaching its maximum elongation from the Sun, placing it high in the eastern morning sky.

A panorama of roughly 120° showing a star- and planet-filled sky in the dawn twilight over Lake Annette in Jasper National Park, Alberta, on the morning of October 25, 2015.  At left, to the east, are the two bright planets, Venus (brightest) and Jupiter in a close conjunction 1° apart (and here almost merging into one glow), plus reddish Mars below them, all in Leo, with the bright star Regulus above them. Right of centre, to the south, is Orion and Canis Major, with the bright star Sirius low in the south. At upper right are the stars of Taurus, including Aldebaran and the Hyades star cluster. Venus was near greatest elongation on this morning.  No special filter was employed here — the hazy planets and stars and colourful star images comes naturally from a high haze over the sky this morning. It bloats the images of Venus and Jupiter so they almost merge.  The stars are partly reflected in the waters, with rising mist in the distance on the lake. Distant Whistler peak below Orion is lit by lights from the Jasper Townsite. The site is the shore of Lake Annette near the Jasper Park Lodge and site of the annual star party held as part of the Jasper Dark Sky Festival. I shot this scene the morning after the 2015 Festival. This is a panorama of 8 segments, shot with the 24mm lens mounted vertically (portrait), each for 25 seconds at f/2.8 with the Canon 6D at ISO 3200. Stitched with Photoshop, with some vertical scaling to reduce the distortion introduced by the pan mapping process.

I shot from the shores of Lake Annette, site of one of the major events, the Friday star party, at the annual Jasper Dark Sky Festival which just concluded, in Jasper National Park, Alberta. The Festival celebrates the Park’s status as one of the world’s largest Dark Sky Preserves.

The hotels and restaurants were full with stargazers from around the world, making the Festival a huge success, both educationally and financially. I was honoured to be able to present some of the public and school talks.

But this dawn sky was a fine way to end a fabulous weekend of astronomy.

The image above is a panorama in the twilight, sweeping from the planets in the east, to the winter stars and constellations, including iconic Orion, in the south and southwest.

A panorama of roughly 180° showing a star- and planet-filled sky in the pre-dawn hours over Lake Annette in Jasper National Park, Alberta, on the morning of October 25, 2015.  At left, to the east, are the two bright planets, Venus (brightest) and Jupiter in a close conjunction 1° apart (and here almost merging into one glow), plus reddish Mars below them, all in Leo, with the bright star Regulus above them. At centre, to the south, is Orion and Canis Major, with the bright star Sirius low in the south. At upper right are the stars of Taurus, including Aldebaran and the Pleiades star cluster. Venus was near greatest elongation on this morning.  The Milky Way runs vertically at centre, between Sirius and Procyon, the bright star above centre. The faint glow of morning Zodiacal Light rises in a diagonal band at left in the east through the planets and stars of Leo and into Cancer and the Beehive Cluster at top left.  No special filter was employed here — the hazy planets and stars and colourful star images comes naturally from a high haze over the sky this morning. It bloats the images of Venus and Jupiter so they almost merge.  The stars are partly reflected in the waters with wind distorting some of the reflections. Some green airglow appears in the south as well. Distant Whistler peak below Orion is lit by lights from the Jasper Townsite. The site is the shore of Lake Annette near the Jasper Park Lodge and site to the annual star party held as part of the Jasper Dark Sky Festival. I shot this scene the morning after the 2015 Festival. This is a panorama of 12 segments, shot with the 24mm lens mounted vertically (portrait), each for 30 seconds at f/2.8 with the Canon 6D at ISO 3200. Stitched with Photoshop, with some vertical scaling to reduce the distortion introduced by the pan mapping process.

Earlier in the morning, before twilight began to brighten the sky, I shot another even wider panorama from the south shore of the lake.

In this and other photos, high haze adds the glows around the stars and planets naturally. No special effects filters here!

But Venus and Jupiter are so close and bright their images almost merge into one glow.

Brilliant Venus, in conjunction with dimmer Jupiter above, and with even dimmer Mars below, at left here, on the morning of October 25, 2015 when Venus and Jupiter were only 1° apart.  I shot this from Lake Annette in Jasper National Park before the sky started to brighten with dawn twilight. High haze in the sky adds the glows around the stars and planets, in particular the colored halo around Venus. The mountain is the Watchtower. The site is used as the main star party location for the annual Jasper Dark Sky Festival. This is a 30-second exposure at f/2.8 with the 35mm lens and as ISO 1600 with the Canon 6D.

Here they are, with Mars below, shining in the dark sky over the Watchtower peak and over the misty waters of Lake Annette.

Keep an eye on the sky at dawn, as these three worlds will be close to each other for the next few mornings. See my earlier blog for details.

— Alan, October 25, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Four Planets Along the Morning Ecliptic


Four planets in the morning sky, on October 20, 2015, along the ecliptic from bottom to top:  - Mercury (close to the horizon at lower left) - Mars (dim, below Jupiter) - Jupiter (fairly bright at upper right) - Venus (brightest of the four) I shot this from home in southern Alberta. This is a composite stack of 5 exposures from 15 seconds to 1 second to contain the range of brightness from the bright horizon to the dimmer sky up higher. All with the 35mm lens and Canon 6D at ISO 800.

Four planets appear in the dawn sky outlining the morning ecliptic.

This morning, October 20, I was able to capture four planets in the morning sky, arrayed along the ecliptic.

From bottom to top they are: Mercury (just past its point of greatest elongation from the Sun), dim Mars, bright Jupiter, and very bright Venus (just 6 days away from its point of greatest elongation from the Sun). Above Venus is Regulus, in Leo.

I’ve added in the labels and the line of the ecliptic, rising steeply out of the east in the autumn dawn sky.

Of course, there is a fifth unlabelled planet in the scene, quite close in the foreground.

The image below is an unlabeled version.

Four planets in the morning sky, on October 20, 2015, along the ecliptic from bottom to top:  - Mercury (close to the horizon at lower left) - Mars (dim, below Jupiter) - Jupiter (fairly bright at upper right) - Venus (brightest of the four) I shot this from home in southern Alberta. This is a composite stack of 5 exposures from 15 seconds to 1 second to contain the range of brightness from the bright horizon to the dimmer sky up higher. All with the 35mm lens and Canon 6D at ISO 800.

Mercury will be disappearing from view very quickly now as it drops back down toward the Sun.

But over the next week the three higher planets will converge into a tight triangle just 4.5 degrees apart. We won’t see these three planets this close together in a darkened sky until November 2111.

For more information on this week’s dawn sky planet dance see my previous blog entry.

TECHNICAL:
I shot the scene from home in southern Alberta. The image is a composite stack, with manually created masks (not an HDR stack), of 5 exposures, from 15 seconds to 1 second, to contain the range of brightness from the bright horizon to the dimmer star-filled sky higher up. All are with the 35mm lens and Canon 6D at ISO 800.

— Alan, October 20, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Heads Up! — Planet Dance in the Dawn


Oct 17 Dawn Sky

Watch a trio of planets converge in the dawn sky. 

You might have already seen Venus shining brightly in the morning sky. And perhaps you’ve seen a slightly less bright object below it. That’s Jupiter.

But there’s a third, even dimmer planet accompanying Venus and Jupiter — reddish Mars. On the morning of Saturday, October 17 (chart above ⬆️) Mars and Jupiter pass just 1/2 degree apart, for a mismatched double “star” at dawn.

The planets put on an even better show in the following 10 days as all three converge to form a tight triangle of worlds in the morning sky.

Oct 23 Dawn Sky

On October 23 ⬆️, Venus, Mars and Jupiter appear in a close grouping just 4.5 degrees apart, close enough to each other to be easily contained in the field of typical binoculars, the circle shown in these charts.

Oct 25 Dawn Sky

Two mornings later, on October 25 ⬆️, Venus and Jupiter are at their closest apparent separation, just 1 degree apart, for a brilliant double “star” in the morning twilight. If you miss this morning, on the next morning, October 24, the two planets appear about the same distance apart as well.

Oct 28 Dawn Sky

By October 28 ⬆️, the three planets have switched positions, as Venus drops lower but Jupiter climbs higher. But they again appear in a triangle, 4.5 degrees wide.

The motion you’re seeing from day to day is due to a combination of the planets’ own orbital motions around the Sun, as well as our planet’s motion.

Keep in mind, the planets aren’t really close together in space. They lie tens, if not hundreds, of millions of kilometres apart. They appear close to each other in our sky because they lie along the same line of sight.

Do try to get up early enough — between 6 a.m. and 6:30 a.m. should do it — to look east to see the changing configuration of planets as they dance at dawn. Binoculars will provide the best view.

This is a rare sight! We won’t see these three planets this close to each other in a darkened sky until November 20, 2111!

— Alan, October 16, 2015 / © 2015 Alan Dyer / www.amazingsky.com

The Moon and Four Planets


The waning crescent Moon, lit by Earthshine, with four planets on the morning of October 9, 2015, with the planets from bottom left to top right: • Mercury, just above the horizon between the low cloud bands, at lower left • Jupiter, bright at centre • Mars, reddish and above Jupiter • Venus, brightest at upper right and in some thin cloud.  The bright star Regulus in Leo is above and to the left of Venus. This is a blend of four exposures: a long 4-second exposure for most of the sky and ground and shorter 2, 1, amd 1/2 second exposures for the bright twilight area and around the Moon and Venus, to prevent those areas fro being blown out. Blending is with masks, not HDR. All with the Canon 6D at ISO 400 and 50mm Sigma lens at f/2.5

The Moon appeared along with four planets in the dawn sky.

The sky was filled with planets this morning, as all four of the closest planets to the Sun appeared along the ecliptic in the morning sky. Plus there’s a fifth planet in the picture – Earth.

Here, the waning crescent Moon, lit by Earthshine, appears with four planets on the morning of October 9, 2015, with the planets from bottom left to top right:

• Mercury, just above the horizon between the low cloud bands, at lower left
• Jupiter, bright at centre
• Mars, reddish and above Jupiter
• Venus, brightest at upper right and in some thin cloud.

The bright star Regulus in Leo is above and to the left of Venus.

The waning crescent Moon, lit by Earthshine, with four planets on the morning of October 9, 2015, with the planets from bottom left to top right: • Mercury, just above the horizon between the low cloud bands, at lower left • Jupiter, bright at centre • Mars, reddish and above Jupiter • Venus, brightest at upper right and in some thin cloud.  The bright star Regulus in Leo is above and to the left of Venus. This is a blend of four exposures: a long 4-second exposure for most of the sky and ground and shorter 2, 1, amd 1/2 second exposures for the bright twilight area and around the Moon and Venus, to prevent those areas fro being blown out. Blending is with masks, not HDR. All with the Canon 6D at ISO 400 and 50mm Sigma lens at f/2.5

Above is an unlabeled version of the image.

TECHNICAL:

It’s a blend of four exposures: a long 4-second exposure for most of the sky and ground, plus shorter 2, 1, and 1/2 second exposures for the bright twilight area and around the Moon and Venus, to prevent those areas from being blown out. Blending is with masks, not HDR. All were shot with the Canon 6D at ISO 400 and 50mm Sigma lens at f/2.5.

– Alan, October 9, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Dawn Sky Delight – the Real Scene


A gathering of planets in the dawn sky on October 8, 2015, with - from bottom to top: Jupiter, Mars, Venus and the Moon, with the star Regulus in Leo left of Venus.  This is a 15-second exposure with shorter exposure blended in for the area around Venus and the Moon to avoid them overexposing too much. So not a true HDR, but using masking to blend the short exposure elements.

The Moon, planets and Northern lights provided a wonderful show in the dawn sky.

What a superb scene this was. On October 8 the waning crescent Moon shone near Venus (brightest) and Regulus, with red Mars and bright Jupiter paired below.

If that wasn’t enough, as the wide-angle panorama below shows, the Northern Lights were also ending a night of performance, with an arc along the horizon and pulsing waves rising up the sky to the northeast near the planet grouping.

A panorama of the pre-dawn sky on October 8, 2015, with a sky full of wonders: • the Northern Lights, or aurora • The Big Dipper above the aurora, somewhat distorted by the panorama projection • at centre, a conjunction and line-up of planets, with from bottom to top: Jupiter, Mars and Venus, with the bright waning crescent Moon beside Venus at top, and also beside the star Regulus in Leo • The Beehive star cluster well above the planet grouping • Orion and Canis Major in the winter sky at right with the Milky Way. I shot this from home, using the Canon 6D and 24mm lens on a fixed tripoid (no tracking), for 7 segments, each a 30-second exposure at f/2.2 and at ISO 1250. Stitched in Photoshop.

The panorama also sweeps right, to the south, to take in the winter Milky Way and constellations of Orion and Canis Major.  Click on the image to bring it up full screen.

The Moon will appear near Mars and Jupiter on the morning of October 9, and then the three planets will begin to converge for a tight gathering for a few mornings around October 25.

Be sure to wake early for the dawn sky show that continues all this month!

– Alan, October 8, 2015 / © 2015  / www.amazingsky.com

Heads Up! – Dawn Sky Delight


Oct 8 Dawn Planets

Look east this week to see a wonderful conjunction of the waning Moon with three planets in the morning sky.

A great dance of the planets is about to begin in the dawn sky.

Venus, Mars and Jupiter are now all prominent in the eastern sky before sunrise, with Venus by far the brightest. Below it shines slightly dimmer Jupiter. But between those two brightest of planets shines dim red Mars.

The three planets are converging for a mutual close meeting in the third week of October, when from October 23 to 28 the trio of planets will appear within a binocular field of each other.

But this week, with the three planets still spread out along a line, the Moon joins the scene to start the planet dance. It shines near Venus on the morning of October 8 (as shown here). and then near Mars and Jupiter on October 9.

Look east between 5:30 and 6:30 a.m. local time. All the planets are easy to see with unaided eye even in the city, but binoculars will frame the Moon-Venus pairing on October 8 and the Moon-Mars-Jupiter trio on October 9.

– Alan, October 8, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Heads Up! – June Moon Passes the Planets


June Moon near Planets

This weekend watch for the waxing crescent Moon passing the “evening stars” of Venus and Jupiter.

On Friday, June 19 look west to see the crescent Moon a binocular field below bright Venus in the evening twilight.

The next night, Saturday, June 20, the Moon appears a little higher and below Jupiter.

On Sunday, June 21, the day of the summer solstice, look for the crescent Moon to the left of the star Regulus in Leo.

Venus and Jupiter are getting closer to each other each night, as they edge toward a very close conjunction on June 30 when they will appear just over a Moon diameter apart in the evening sky.

However, this weekend may bring better photogenic opportunities, with the picturesque crescent Moon near the two brightest planets in the sky.

– Alan, June 15, 2015 / © 2015 Alan Dyer / www.amazingsky.com 

Evening Planet Parade in May


May 21 Venus & Moon

Three planets now shine in the evening sky, including Saturn now at its best for 2015.

Look west in the early evening to sight brilliant Venus in the twilight, and slightly dimmer Jupiter above it. On the evening of Thursday, May 21, look for the waxing crescent Moon below Venus in a wide pairing of the night sky’s two brightest objects.

The Moon appears between Venus and Jupiter on Friday, May 22, and near Jupiter two nights later on Saturday, May 23.

Meanwhile over on the other side of the sky, Saturn is rising at sunset.

May 20 Saturn

As the illustration shows, look southeast after sunset to see Saturn rising along with the stars of Scorpius. Saturn now outshines all the stars of Scorpius, including the red giant star Antares, shining below Saturn.

Saturn is at opposition this weekend, meaning Sun, Earth and Saturn are now lined up with Earth directly between the Sun and Saturn. That puts Saturn as close to us as it gets for 2015, and as bright as it gets.

Being opposite the Sun, Saturn is now rising in the southeast as the Sun sets in the northwest.

A nightscape of antique farm combines illuminated by starlight, with the Milky Way behind. The galactic centre area of Sagittarius and Scorpius lie to the south, with Saturn the brightest object at right. I shot this at the Visitor Centre at the Old Man on His Back Conservation Area in southwest Saskatchewan. The sky is a single 30-second exposure at f/2.8 with the 24mm lens and Canon 5D MkII at ISO 6400. The ground comes from a stack of 8 exposures to smooth noise, all part of a time-lapse/star trail sequence.
A nightscape of antique farm combines illuminated by starlight, with the Milky Way behind. The galactic centre area of Sagittarius and Scorpius lie to the south, with Saturn the brightest object at right. I shot this at the Visitor Centre at the Old Man on His Back Conservation Area in southwest Saskatchewan. The sky is a single 30-second exposure at f/2.8 with the 24mm lens and Canon 5D MkII at ISO 6400. The ground comes from a stack of 8 exposures to smooth noise, all part of a time-lapse/star trail sequence.

Here’s a shot of Saturn, Scorpius, and the Milky Way from early this morning, May 20, taken about 2:30 a.m. when Saturn and Scorpius lay due south. From the latitude of southern Saskatchewan where I am this week, Saturn and Scorpius graze the southern horizon, even in the middle of the night.

– Alan, May 20, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Heads Up! – Planets Pair with Clusters


April 11 Venus & M45

Look west and south this weekend to see the two brightest planets each pairing with a bright cluster of stars.

This weekend, Venus and Jupiter each pair with a prominent open star cluster.

In the west, look for brilliant Venus, an evening “star” this spring, shining near the Pleiades, or Seven Sisters star cluster. Some know it as Messier 45.

Both Venus and the Pleiades are in Taurus the bull, whose main stars lie to the left of the Venus-Pleiades pairing. Farther to the left still, look for the distinctive stars of Orion the hunter, whose trio of Belt stars give him away.

April 11 Venus & M45 CU

As this close up shows, binoculars will nicely frame Venus and the Pleiades at once.

Venus continues to climb higher this spring while the Pleiades and the other stars of the winter sky, including Orion and Taurus, sink lower and lower. The next few nights are the best for catching Venus as it passes the Pleiades.

April 11 Jupter & M44

High in the south as it gets dark shines the other bright planet in our sky – Jupiter.

It, too pairs with a star cluster. Jupiter now shines a binocular field to the east (left) of the Beehive Cluster, also known as Messier 44. Jupiter and M44 lie in Cancer the crab, a faint constellation nestled between Leo to the east and Gemini to the west.

Jupiter has been retrograding closer to the Beehive all winter and early spring. But this weekend Jupiter sits as close to the cluster as it is going to get. For the rest of spring and summer Jupiter will move east away from the Beehive.

Look west and south as it gets dark this weekend, for the pair of planet-cluster pairings!

Clear skies and happy stargazing.

– Alan, April 9, 2015 / © 2015 Alan Dyer / www.amazingsky.com

 

Rising of the Snow Moon & Jupiter


Full Snow Moon over Silver City Panorama #1

Tonight the Full Moon rose paired with Jupiter, in the colourful twilight over Silver City, New Mexico.

Using The Photographer’s Ephemeris app, I scouted out the location last night for the shoot tonight, February 3.

I drove west of Silver City to a viewpoint on Boston Hill overlooking the town east to the rising Moon.

The Full Moon of February has come to be called the “Snow Moon,” appropriate for many parts of the continent now enduring record snowfalls. But here, we enjoyed summer-like temperatures and a decided lack of snow.

The Moon rose into a clear sky accompanied by Jupiter, now 4 days before its annual opposition date. At opposition we pass between the Sun and an outer planet, in this case Jupiter. This puts Jupiter opposite the Sun, so it rises as the Sun sets.

The Full Moon also always lies opposite the Sun, so tonight the Full Moon joined Jupiter in the sky.

Full Snow Moon over Silver City Panorama #2

To capture the scene I shot several panoramas, each consisting of several segments, to take in the broad sweep of the horizon. The scene above records the pink “Belt of Venus,” created by sunlight lighting the upper atmosphere to the east in the half hour or so after sunset down here on Earth.

Full Snow Moon over Silver City Panorama #3

Once the sky got darker, Jupiter stood out better, shining to the left of the Moon.

Jupiter is now also closest to Earth and brightest for 2015. It will dominate our eastern sky for the rest of the winter and early spring, eventually shining to the south as night falls in late spring.

– Alan, February 3, 2015 / © 2015 Alan Dyer / www.amazingsky.com 

Heads Up! – A Picturesque Snow Moonrise


Feb 3 Moon & Jupiter

This Tuesday, Feb. 3, watch the Full “Snow” Moon rise accompanied by the giant planet Jupiter.

Tuesday is Full Moon, the February “Snow Moon” according to some interpretations. Indeed, from most places in North America the Moon will rise over a snow-covered landscape to light the winter night.

This Full Moon is also special because it will pair with bright Jupiter. Both worlds are now at or near “opposition.”

Any Full Moon is always opposite the Sun – that’s why it is fully illuminated by the Sun.

But Jupiter is also near its annual opposition point in its orbit. The official date of opposition is Friday, Feb. 6. On that date Earth passes directly between the Sun and Jupiter – our three worlds lie in a line across the solar system. We are then closest to Jupiter and Jupiter appears opposite the Sun.

Being opposite the Sun, Jupiter rises as the Sun sets. And so will the Full Moon on Tuesday, accompanied by the giant planet now at its brightest for the year.

Look east at sunset. It will be a photogenic sight for the prepared photographer.

But you can also enjoy it with just the unaided eyes or binoculars, as the two worlds will appear about a binocular field apart, 5 degrees.

The double circles on the chart mark the position of the Earth’s shadow, which is always opposite the Sun. You can’t see our shadow out in space – not unless the Full Moon passes through it, which it will on April 4, for a total eclipse of the Moon. More about that in two months.

For now, enjoy the Snow Moon with the Giant Planet.

– Alan, January 31, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Dawn Conjunction of Venus and Jupiter


Venus & Jupiter Conjunction, with Moon (August 18, 2014)

It was a fine celestial sight to begin the week, as Venus met Jupiter in the dawn sky.

This morning, August 18, Venus and Jupiter appeared just 1/2 degree apart, as close as they’ve appeared to each other since 1999.

The top image shows the wide-angle setting, with Venus and Jupiter tightly paired near the horizon, and the waning Moon above, itself in conjunction with Aldebaran in the Hyades star cluster.

Venus & Jupiter Conjunction Closeup

This zooms into the main event, the Venus-Jupiter pairing, as they were emerging from the horizon haze.

I shot this from home, off the back deck, having little ambition at 5 a.m. to venture any further afield. I had planned to shoot this from Dinosaur Park but had second thoughts on the hour drive there and back!

Waning Moon in the Hyades near Aldebaran

This zooms into the secondary show this morning, the meeting of the waning crescent Moon with the brightest star in Taurus, Aldebaran, and its companion stars in the Hyades star cluster. This is a telephoto lens shot with a fixed camera, no tracking.

Thus begins a fine two weeks of stargazing, weather permitting, as the Moon exits the sky to leave us the summer Milky Way at its best, and dual pairs of planets in the dusk and dawn sky – Mars and Saturn converging in the evening and Venus and Jupiter, now parting ways, in the morning.

– Alan, August 18, 2014 / © 2014 Alan Dyer

 

The Christmas Sky of 2013


Orion & Winter Sky (Christmas 2013)

_____________________________________________

” ‘Twas the night of Christmas, and all across the sky,

All the stars were twinkling, and Orion shone on high.”

_____________________________________________

Here’s my Christmas postcard, presenting the winter stars and constellations as they appeared over my Alberta backyard on Christmas night. The night was clear and calm, and not too cold.

Orion stood “on high” in the south, above bright Sirius, and below even brighter Jupiter at left, now blazing away in Gemini.

The winter Milky Way runs down the sky from Perseus at top to Canis Major on the horizon.

Merry Christmas to all and to all a good night!

– Alan, December 25, 2013 / © 2013 Alan Dyer

Winter Sky Rising


Jupiter, Orion and Winter Sky Rising (24mm)

Jupiter and the stars of the winter sky rise in the east on a December night in New Mexico.

This was the scene last night, December 4, as clouds cleared away enough for great views of Orion and the winter sky rising above distant mountains in New Mexico. (All the clouds, that is, except for one annoying dark blob in Gemini above Jupiter!)

The bright object at lower left is Jupiter, in Gemini this winter, rising with Castor and Pollux to the left of Jupiter. To the right of frame Orion comes up on his side, with his Belt pointed down to where Sirius will come up shortly after I took this image. The red-sensitive camera picks up swirls of nebulosity around Orion.

Above Orion are the stars of Taurus and Auriga.

Milky Way in Perseus, Auriga and Taurus (24mm)

This image is a framing of the Milky Way from Perseus at top right down to Taurus and the top of Orion at bottom left. At centre is the blue Pleiades star cluster, and the red arc of the California Nebula. Also at centre you can see the long dusty tendrils of the Taurus Dark Clouds, interstellar clouds between us and the Perseus arm of the Milky Way.

I shot both from the Painted Pony Resort in southeast New Mexico using a little iOptron SkyTracker and 2.5- to 3-minute exposures with a filter-modified Canon 5D MkII.

— Alan, December 5, 2013 / © 2013 Alan Dyer

The Moon Meets Jupiter and the Hyades


Moon near Jupiter & Hyades (March 17, 2013)

On Sunday night, March 17, the waxing Moon came very close to Jupiter and the Hyades star cluster for one of the best conjunctions of the year.

This was certainly a night to remember. Minutes after I took the images for this shot, I took the frames for the Comet over the VLA image in the previous post. Here, I caught the Moon shining just below Jupiter (you can see a couple of its moons as well) and just above the Hyades star cluster and the bright yellow star Aldebaran at the bottom of the frame. All are set in the deep blue of twilight.

This is a high dynamic range (HDR) stack of seven exposures ranging from 6 seconds to 1/13 second, to capture the huge range in brightness from the sunlit Moon to the faint stars. Even so, the daylit side of the Moon remains overexposed. But the “dark side of the Moon” lit by Earthshine shows up well. A 135mm telephoto frames the field much as binoculars would show it.

This night recalled a similar evening on April 10, 1997, when Comet Hale-Bopp appeared low in the northwest, much as PANSTARRS is now, and the Moon actually passed in front of Aldebaran. An aurora display also broke loose that night, but not so last night – they are unlikely from New Mexico, though some northern lights were seen the night before from as far south as Colorado.

– Alan, March 18, 2013 / © 2013 Alan Dyer

 

 

Moon and Jupiter Amid the Winter Stars


The Moon near Jupiter in the Winter Sky, January 21, 2013

The Moon lights up a sparkling snowscape on the night it was close to Jupiter, as Orion and the winter stars rise.

The Moon is the bright and overexposed glow at upper right. Look carefully and you can just make out Jupiter above the Moon, almost lost in its glare. Below shines Orion, with Sirius the Dog Star just coming up above the distant trees. The Pleiades, at top above the Moon, complete this winter sky scene from Monday, January 21, 2013.

I’m glad I didn’t have to go far to shoot it, just 20 feet out the front door. Standing there for just 15 minutes was a chore, with a wicked east wind blowing in -18° C temperatures. This was a night that would normally fall below my threshold of tolerance for winter observing. But with the Moon so close to Jupiter it was worth a little pain for the gain of a neat winter sky portrait.

The image is a composite of a long and short exposure, in order to capture Jupiter so close to the Moon which, in a single long exposure, would have overexposed so much its light would have swamped Jupiter.

– Alan, January 21, 2013 / © 2013 Alan Dyer

The Moon Meets Jupiter


Moon & Jupiter (Jan 21, 2013) HDR with 320mm

The cool blue of this scene fits the night – a bitterly cold winter night as the gibbous Moon passed below Jupiter.

This was the view as the sky got dark on Monday, January 21, 2013 with a close conjunction of the Moon and Jupiter underway. The Moon was closer to Jupiter later in the evening but I wanted to shoot it at sunset to capture the duo before for the sky got too dark and the Moon too bright and prone to overexposure. Even so, to capture the scene as your binocular-aided eyes saw it, I combined 4 different exposures for an “HDR” stack.

This is the closest we in North America will see the Moon by Jupiter in a darkened sky until 2026. But just next month those in southern Australia get to see a rare occultation, or “eclipse” of Jupiter by the Moon. It doesn’t get any closer than that!

– Alan, January 21, 2013 / © 2013 Alan Dyer

Winter Stars Rising


The Winter Sky, Northern Hemisphere

Yes, it’s cold out there, but a clear evening away from city lights this week – or this winter – will reward you with the sight of a rising star-filled sky.

This is the winter sky of the northern hemisphere, rising above a snowy prairie landscape, in a shot I took Sunday night, January 6, 2013. The sky is populated by a ream of bright stars and constellations, anchored by Orion, just below centre. You can see his three Belt stars pointing down to Sirius, just peering above the horizon in the glow of a distant town. Orion’s Belt points up to Aldebaran, the V-shaped Hyades star cluster, and bright Jupiter (the brightest object in the scene, above centre), all in Taurus. Above Jupiter is the Pleiades star cluster.

The Milky Way runs down the sky from Auriga to Canis Major. This week, January 6 to 13, is a good week to see the winter Milky Way, as it’s New Moon and the sky is dark.

In this scene the camera was looking southeast about 9 p.m. Sirius has just risen. By midnight the Dog Star shines due south. I used a 15mm wide-angle lens to take in the entire sweep of the winter sky from horizon to zenith. This is a stack of four 4-minute exposures, though the landscape is from just one of the frames, to minimize the blurring caused by the camera tracking the sky. Some clouds moving in add the streaks on either side of the frame. It was a wonderful sky, while it lasted!

And I’m pleased to note that this is my 250th blog post since beginning AmazingSky.net two years ago in early 2011. I hope you have enjoyed the sky tours.

– Alan, January 6, 2013 / © 2013 Alan Dyer

Jupiter Amid the Clusters of Taurus


Jupiter in Taurus (January 4, 2013)

Look up on a clear night this season (winter for us in the northern hemisphere) and you’ll see a bright object shining in Taurus the bull. That’s Jupiter.

This year Jupiter sits in a photogenic region of the sky, directly above the stars of the Hyades star cluster and yellow Aldebaran, the brightest star in Taurus. Above and to the west (right) of Jupiter is the blue Pleiades star cluster.

Over the course of January 2013 you’ll be able to see Jupiter move a little further west each night (to the right in this photo) away from Aldebaran and toward the Pleiades. Jupiter will stop its retrograde motion on January 30. After that it treks eastward to again pass above the Hyades and Aldebaran (returning to where it is now) in early March.

Jupiter’s proximity to Aldebaran and the Hyades makes it easy to follow its retrograde loop over the next few weeks. It’s an easy phenomenon to watch, but explaining it took society hundreds of years and the ultimate in paradigm shifts in thinking, from the self-important arrogance that Earth – and we – were the centre of the universe, to the Sun-centered view of space, with Earth demoted to being just one planet orbiting our star.

I took this image Friday night, January 4, from home as my first astrophoto upon returning to Canada from Australia. It’s a combination of two sets of images: one taken “straight & unfiltered” and one taken through a soft-focus filter to add the glows around the stars and central, brilliant Jupiter. I then blended the filtered images onto the normal images in Photoshop with the Lighten blend mode.

– Alan, January 5, 2013 / © 2013 Alan Dyer

Jupiter Rising


Look east now late at night and you’ll see Jupiter rising amid the stars of Taurus.

I took this shot a week ago from my rural backyard on the last clear night I’ve had. Remarkably, I had  bought a new camera – a Canon 60Da – earlier that day and was actually able to try it out. This is the first real shot I took with it. It shows Jupiter amid the horns of Taurus the bull, and below the Pleiades. A faint aurora lights up the northern sky at left.

There have been some superb aurora displays in the last week but clouds just got in the way.

This is my 200th blog post since I began AmazingSky.net in early 2011. I hope you have enjoyed the images and will continue to do so. Thanks for looking!

– Alan, October 15, 2012 / © 2012 Alan Dyer

Venus and Jupiter Converge


Venus and Jupiter are getting closer! To each other that is.

This was the scene Saturday night, March 10, two days before Venus (on the right here) and Jupiter reach their close conjunction in the evening twilight sky. I’m amazed how high the pair of objects are at sunset, with Venus much higher in the sky than it normally appears. We haven’t seen Venus as well as this since 2004.

This is a scenic prairie nightscape, with some ramshackle buildings from a 1940s vintage farmstead near my house serving as a foreground setting for the sky scene above. Headlights from a passing car provided some handy and warm illumination to contrast with the cold blue above.

— Alan, March 10, 2012 / © 2012 Alan Dyer

 

A Panorama of Planets


This was a beautiful night, with the array of five worlds stretched across the sky, a parade of planets and the Moon.

Mercury is now at its greatest angle away from the Sun and easiest to see in the evening sky this week for the year, at least from Canadian latitudes. Even so, it is low in the western twilight.

You can’t miss Venus and Jupiter higher in the west. Watch them close up and trade places in mid-March.

Mars is now at opposition, closest to Earth, and rising at sunset. It shines brightly as a red star in the east, 180° away from Mercury. It will be in our sky for several more months.

Orion shines due south amid the clouds. The arc of clouds rather nicely defines the arc of the ecliptic path across the sky, the path along which we always find the planets.

I took the shots for this panorama on Sunday, March 4. I took five segments, each 13 second exposures with a 16-35mm lens, then combined them in Photoshop CS5 with its Photomerge command.

— Alan, March 4, 2012 / © 2012 Alan Dyer

Jupiter and Mercury Amid the Clouds



One of the rules of astrophotography is that clouds always position themselves right over the objects you are trying to shoot. When the subject in question is a pair of planets, then a cloud will always cover one or the other planet, making it impossible to capture both at once and therefore record the conjunction.

Tonight, March 15, I chased out west of Calgary to get the conjunction of Mercury and Jupiter over the scenic skyline of the Rockies. Of course, clouds drifted slo-0-0-0-w-ly across the sky. But with a little patience (and I do have very little to spare in situations like this!) I was able to catch a few moments when both Jupiter (at left here) and Mercury (upper right) shone in view amid the clouds.

The highway (Highway 66 to Bragg Creek) adds a nice touch, with cars seeming to come and go from the distant planets.

Again, as with the previous night’s shot, this is a “high dynamic range” stack of three shots taken in quick succession but with EV values 1 1/3rd f-stops apart, to retain both ground and sky detail in an inherently contrasty situation. Photoshop CS5’s HDR Pro feature does a great job. This is with the Canon 7D and 135mm lens.

– Alan, March 15, 2011 / Image © 2011 Alan Dyer

Mercurial Encounter


Mercury is the elusive planet. Yet, when conditions are right, it is surprisingly easy to see. And you wonder what everyone is complaining about!

That was certainly the case tonight, March 14, 2011. I just walked out, looked west and there it was, shining bright and obvious to the right of Jupiter. No binoculars needed! Having brighter Jupiter nearby helps to be sure. But Mercury is certainly not dim. It’s wonderful that this week is the best time of the year for us northerners to spot Mercury, just as NASA’s Messenger probe enters orbit around the inner planet, becoming the first to orbit, not just fly past, Mercury. It is always nice to look up and see the planet that you can point to and say, “We have a probe exploring that world.” Later this year, one will be on its way to Jupiter as well — the Juno orbiter.

This shot shows the scene with Mercury (at right) approaching its March 15 close conjunction with Jupiter in the evening twilight. This image captures the view much as the eye saw it. But to do that I took a “High Dynamic Range” composite of three exposures about 1 stop apart, taken in rapid succession with a Canon 7D camera and Sigma 50mm lens.

– Alan, March 14, 2011 / Image © 2011 Alan Dyer