Nightscapes at Double Arch


Star Trails Behind Double Arch

The iconic Double Arch looks great under dark skies, moonlight, or painted with artificial light.

Last night, I returned to the Double Arch at Arches National Park, to capture a star trail series, starting from the onset of darkness at 9:30 p.m., and continuing for 2.5 hours until midnight, an hour after moonrise at 11:00 p.m. The lead image is the result.

I think it turned out rather well.

The Big Dipper is just streaking into frame at top right, as I knew it would from shooting here the night before. The bright streak at upper left is Jupiter turning into frame at the end of the sequence. Note how the shadow of the moonlit foreground arch matches the shape of the background arch.

On the technical end, the star trail composite is a stack of 160 frames, each 45 seconds at f/2.8 and ISO 3200, with the Canon 6D and 14mm lens. The foreground, however, comes from a stack of 8 frames taken toward the end of the shoot, as the moonlight was beginning to light the arches. An additional 45-second exposure taken a couple of minutes after the last star trail frame adds the star-like points at the “head” of the star trail streaks.

I used the excellent Advanced Stacker Actions from StarCircleAcademy to do the stacking in Photoshop.

Dark Sky Behind Double Arch

Before starting the star trail set, I took some initial short-exposure nightscapes while the sky was still dark. The result is the above image, of Double Arch in a dark sky. Passing car headlights provided some rather nice accent illumination.

On such a fine night I thought others might be there as well. Arches is a very popular place for nightscape imaging.

Sure enough, 6 others came and went through the early evening before moonrise. We had a nice time chatting about gear and techniques.

As expected, a few photographers came armed with bright lights for artificially lighting the arches. I kept my camera running, knowing any illumination they shone on the foreground wouldn’t affect my star trails, and that I’d mask in the foreground from frames taken after moonrise.

Photographer Lighting Double Arch

Here’s one frame from my star trail sequence where one photographer headed under the arch to light it for his photos. It did make for a nice scene – a human figure adds scale and dimension.

However, I always find the light from the LED lamps too artificial and harsh, and comes from the wrong direction to look natural. I also question the ethics of blasting a dark sky site with artificial light.

On a night like this I’d rather wait until moonrise and let nature provide the more uniform, warmer illumination with natural shadows.

Big Dipper over Double Arch

As an example, I took this image the night before using short exposures in the moonlight to capture the Big Dipper over Double Arch. When I shot this at 11 p.m. I had the site to myself. Getting nature to provide the right light requires the photographer’s rule of “waiting for the light.”

– Alan, April 7, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Orion Over and Through Turret Arch


Orion Star Trails Through Turret Arch

What a fabulous night for some nightscapes at Arches National Park, Utah.

I’m at Arches National Park for two nights, to shoot the stars over its amazing eroded sandstone landscape.

I started the night last night, April 6, shooting Orion over Turret Arch while the sky was still lit by deep twilight. That image is below. It shows Orion and the winter sky, with bright Venus at right, setting over the aptly-named Turret Arch.

I scouted the location earlier in the day and measured in person, as expected from maps, that the angles would be perfect for capturing Orion over the Arch.

But better still would be getting Orion setting through the Arch. That’s the lead photo at top.

I shot the star trail image later in the evening, over half an hour. It uses a stack of 5 exposures: a single, short 30-second one for the initial point-like stars, followed by a series of four 8-minute exposures to create the long star trails. The short exposure was at ISO 4000; the long exposures at ISO 250. All are with the Rokinon 14mm lens.

Orion Over Turret Arch

Arches is a popular and iconic place for nightscape photography.

I thought I’d likely not be alone, and sure enough another pair of photographers showed up, though they were armed with lights to illuminate the Arches, as many photographers like to do.

I shot this from afar, as they lit up the inside of Turret Arch where I had been earlier in the night.

Photographer Lighting Turret Arch

I prefer not to artificially illuminate natural landscapes, or do so only mildly, not with bright spotlights. We traded arches! – while I shot Turret, the other photography couple shot next door at the North and South Window Arches, and vice versa. It all worked out fine.

Later in the night, after moonrise, I shot next door at the famous Double Arch. Those moonlit photos will be in tomorrow’s blog.

It was a very productive night, and a remarkable experience shooting at such a location on a warm and quiet night, with only a fellow photographer or two for company.

– Alan, April 7, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Moonlighting at Monument Valley


Moonrise Behind the Mittens at Monument Valley (#1)

The Full Moon rises behind the famous Mitten buttes at Monument Valley.

I spent a fabulous weekend capturing sunsets and nightscapes at the iconic Monument Valley on the Utah/Arizona border, the photogenic outdoor set of dozens movies over the decades.

On the eve of the total lunar eclipse I shot the nearly Full Moon rising behind the West (left) and East (centre) Mittens and Merrick Butte (at right). On the evening of Friday, April 3 the Moon rose and sat amid the sunlit clouds with the Sun still up.

The alignment that would place the Moon directly opposite the Sun to create the eclipse was still 11 hours away.

Note how the butte’s shadows point almost, but not quite directly, at the nearly Full Moon. They point at the place in the sky the Moon would be before dawn at the end of that night.

Indeed, on eclipse morning on Saturday, April 4 the Moon set exactly as the Sun rose (see my photos in my previous blog).

But on eclipse eve the Moon rose 30 minutes before the Sun set, providing a chance to catch the Moon behind the still sunlit red buttes.

Moonrise Behind the Mittens at Monument Valley (#2)

I shot this image about 20 minutes after sunset on April 3, so the foreground is now in shadow but the Moon appears in a more richly tinted twilight sky.

Orion and Venus Setting at Monument Valley

Later on April 3 I captured this scene, with the Tear Drop and Rock Door Mesas now lit by a bright Full Moon, and with the stars of the winter sky setting into the west. Canis Major and Orion are at left, while Taurus, including the Pleiades star cluster and brilliant Venus, are at right.

The Orion & Venus image is a 2-panel panorama.

Moonbeams at Monument Valley

On the evening of April 4, clouds thwarted plans for a long star trail sequence above a moonlit foreground.

Instead, I shot toward the Moon and clouds, to capture subtle moonbeams radiating out from the Moon, now some 14 hours after the eclipse, rising behind Merrick Butte. I shot this from the dusty Loop Road that winds through the valley floor.

Big Dipper over West Mitten, Monument Valley

Instead of lots of images for a star trail composite, I was content to shoot this one image, catching the Big Dipper in a brief hole in the drifting clouds, hanging in the sky over the West Mitten butte. The foreground is lit by the partly obscured Full Moon. The long exposure streaks the moving clouds.

Night or day, it’s hard not to take a great photo here, clouds or not!

Sunset Panorama at Monument Valley

On my final evening at Monument Valley, high winds common to the area, blowing dust, and the closed Loop Road, scuttled plans again for long star trail sequences from the valley floor.

So on Easter Sunday, April 5, I settled for a panorama from the classic viewpoint showing the setting Sun lighting the buttes and mesas of Monument Valley.

It is an amazing place, but one that still requires patience to wait out the clouds and dust storms.

– Alan, April 6, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Red Moon over the Red Rocks of Monument Valley


Lunar Eclipse Sequence from Monument Valley

What a great site to watch the Moon turn red in a total eclipse.

I can’t recall a more scenic total eclipse of the Moon. I planned this site as best I could from Google maps and other apps, and the location proved ideal.

As the Moon went into the Earth’s shadow it set into the notch between the two peaks of this mesa at Monument Valley, Utah. It was a stunning celestial sight seen from one of the most dramatic scenic sites on the planet.

This was the total lunar eclipse on the morning of April 4, 2015, an eclipse that was barely total with just 4 minutes of totality with the Moon within Earth’s umbral shadow. The top of the Moon, grazing the edge of our planet’s shadow, always appeared bright white, as expected.

The lead image is a composite of many exposures: short ones for the partial phases that flank a longer exposure for the single image of totality and and even longer exposure for the sky and landscape, all taken over the course of 2.5 hours with a fixed camera – don’t bump the tripod!

Lunar Eclipse over Monument Valley Mesa

I shot this image with the second camera riding on a tracking platform. It is a bend of three exposures: two long ones for the sky and ground and a short exposure to retain the Moon and avoid it turning into a white overexposed blob.

The long sky exposure was taken with the tracker on, to keep the stars as pinpoints, while for the ground exposure I turned the tracker motor off to keep the ground sharp. I layered and masked these with Photoshop.

Lunar Eclipse at Dawn from Monument Valley

The last image is a single image only, just one exposure, taken a few minutes after the end of totality as the sky was quickly brightening with the blue of dawn. It captures the naked-eye scene.

I shot all these from my B&B for the weekend, the Tear Drop Arch B&B, named for the arch on the mesa at left in these images. I chose the spot to provide a scenic foreground to the western-sky eclipse without having to drive miles in the pre-dawn hours. I was moments away from bed as the sun rose and the eclipsed Moon set.

Next lunar eclipse: September 27, 2015, in the evening for North America.

– Alan, April 4, 2015 / © 2015 Alan Dyer / www.amazingsky.com