The Eclipse in Time-Lapse


Total Solar Eclipse - 2nd Contact Diamond Ring (Nov 3 2013)

Here’s the Atlantic Crossing eclipse in time-lapse from the deck of the spv Star Flyer.

The above image is a still frame from the time-lapse movie I took on November 3, 2013 of the 44-second-long total eclipse of the Sun from the mid-Atlantic Ocean. It shows the first diamond ring (second contact) as totality began.

Below is the full time-lapse.

The movie is from 385 frames shot from before totality until well after. It shows just how lucky were were at seeing this eclipse, with the Sun coming out into a deep blue sky moments before totality and going back into thin cloud just as the total eclipse ends.

You’ll also appreciate the rolling of the ship, sped up here in the time-lapse, with frames taken one second apart.

Below is a still frame of the final diamond ring (third contact). Notice the difference in the brightness of the distant clouds in this image versus the one above. In the main image at top the clouds below the Sun had not yet entered the Moon’s umbral shadow.

But in the image below, the clouds are immersed in the lunar shadow and are about to be lit up again as the shadow races away from us in the direction toward the Sun.

Total Solar Eclipse - 3rd Contact Diamond Ring (Nov 3 2013)

In the time-lapse you can see the shadow enter the scene at top, then depart at the bottom of the frame below the Sun. As it shoots away from us, the shadow darkens the horizon far in the distance further down the path, bringing totality to those on the path to the east.

– Alan, November 11, 2013 / © 2013 Alan Dyer

Red Sky at Night … Sailor’s Delight


Sunset over the Atlantic (Nov 8, 2013) #2

We saw many wonderful sunsets on our sail across the Atlantic, but this was one of the finest.

This was the sky two nights ago, on the evening of November 8, as the Sun, now below the horizon, lit up the clouds to the west. You can see a few people out in the netting of the bow sprit taking in the view.

Sunset and Sails (Nov 8, 2013)

Here was the view looking up into the square rigged sails on the foremast. “The sky is on fire” was the comment I heard from folks on deck.

Red Rainbow over the Atlantic (Nov 8, 2013)

Contributing to our theme of a rainbow eclipse trip, a red rainbow appeared to the east, lit by the light of the setting Sun. What a wonderful sky this was!

Indeed, one of the other astronomers on board tallied up the number of naked eye sky sights he had seen on the voyage. It was an impressive list, equalling what had previously taken him over 30 years of sky gazing to accumulate.

I’m writing this post from back on land, now in Barbados at a latitude of 13° north. However, now that I have high-speed connectivity I can get caught up with posts from the sea voyage, with a couple of more to come from at sea.

– Alan, November 10, 2013 / © 2013 Alan Dyer

The Post-Eclipse Moon over the Atlantic


Moon & Venus Post Eclipse (Nov 6, 2013) #1

Following any total solar eclipse it’s traditional to look for the crescent Moon as it returns to the evening sky.

This was the view on November 6, three days after Sunday’s total solar eclipse when the waxing Moon was near Venus, with both high in our tropical sky as we finish our sail across the Atlantic. As I write this, we have just sighted the lights of Barbados off the port side as we round the north end of the island. It’s our first sighting of any other sign of civilization in two weeks, since we left the Canary Islands.

Moon & Venus Post Eclipse (Nov 7, 2013) #2

This view is from the next night, November 7, with the Moon higher and well above Venus, set amid the square rigged sails of the Star Flyer clipper ship.

It’s been a fabulous voyage across the Atlantic, with largely calm seas and beautiful weather on most days.

Tomorrow I start a week stay in Barbados.

– Alan, November 9, 2013 / © 2013 Alan Dyer

 

 

 

 

Eclipse on the Atlantic – Success!


Total Eclipse of the Sun from the Atlantic (Nov 3, 2013)With minutes to go until totality it was unclear – literally! – if we were going to see the eclipse.

We have a happy ship of 150 eclipse chasers. On Sunday, November 3 a morning of gloomy faces gave way to smiles and exclamations of joy as the captain of spv Star Flyer piloted our ship into a clear hole in the clouds. We enjoyed a stunningly clear view of totality – all 49 seconds of it – with the eclipsed Sun set in a deep blue sky.

My image above captures some aspects of the scene as it appeared off the port bow of the ship.

But it fails to show just how colourful this eclipse was. Because it was a short eclipse, with the Moon’s disk barely large enough to cover the Sun, the hallmark of this eclipse was the brilliant pink chromosphere that was visible all around the Sun during the entire eclipse, with bits of prominences sticking out.

The pink ring was set amid the silvery-white and symmetrical corona, which in turn was set in a dark blue sky, above the yellow twilit horizon. The naked eye view and the view through binoculars was stunning. It was the most colourful eclipse I can recall, and this was total eclipse #15 for me.

This was also the first eclipse where we had the ability to adjust its time to suit our schedule. We should have been in the -3h GMT time zone at our longitude in the mid-Atlantic. But in a pre-eclipse planning meeting we decided to keep the ship’s clocks on -1 GMT until after the eclipse. This put totality at 10:30 a.m. our time, making it convenient for everyone to have breakfast before the eclipse and not interfere with lunch! That’s the luxury of being on a small ship dedicated to seeing the eclipse. The captain and crew have been fantastic.

The second contact diamond ring was prolonged, with the last bits of the Sun breaking up into beads of light as the Sun disappeared behind valleys and craters on the Moon. The third contact diamond ring appeared as a sharp, tiny but brilliant point of light exploding off the top edge of the Moon. It happened all too soon.

In the days leading up to the eclipse we worked with Captain Yuriy Slastenin to choose a new intercept point 160 nautical miles east of our original site, one that would give us another 6 seconds of totality but still allow us to maintain our schedule of reaching Barbados on Sunday, November 10.

Our new site was 17° 0’ 0” North and 37° 11’ 56” West, smack on the centreline. The captain got us to that precise spot about an hour before sunrise, exactly when planned.

But after a week of beautifully clear skies on the sail down from the Canary Islands, the sky on eclipse morning was filled with cloud and unsettled weather. We had rain showers and rainbows Sunday morning, but with tantalizing clear holes coming and going all morning and dappling the ocean with spots of sunlight in the distance.

Partial Eclipse Through Filter (Nov 3, 2013)

I shot this view during one of the clear breaks leading to totality when the Sun and spirits brightened, only to be dashed again as clouds rolled in. The weather took us on an emotional roller coaster all morning.

In the minutes leading up to totality the captain was at the helm and propelled us under full engine power into a clear hole that opened up just before totality. We ended up 1.7 nautical miles east of our choice position and slightly south of the centre line, but with the same 49 seconds of totality.

Eclipse Site Map

The image above shows our ship’s track during the eclipse, from the intended site, first drifting around the intercept point, then heading southeast toward clear skies. The track then heads straight west, as we set sail again toward Barbados soon after totality while the champagne was being served.

Our success speaks to the maneuvering advantage of a ship in tropical climates. I’ve now seen three total eclipses from ships at sea at tropical latitudes, and we’ve always had to move at the last minute to get into clear holes.

Of course, the worst weather we’ve encountered so far on the voyage was on eclipse day and the day after, yesterday. As I write this, on Tuesday, November 5, the day is hot and sunny, and the ocean as calm as we’ve seen it. (I’ve not been able to post anything until now as our ship’s connection to the internet via the Inmarsat satellite has been off-line for the last few days.)

As totality ended the Sun went into thin cloud again. From then on that morning we saw the Sun only briefly during the final partial phases.

But no one cared. We saw what we had sailed across the Atlantic to see. It is a happy ship of shadow chasers.

The trip was organized by Betchart Expeditions who chartered the Star Flyer, a 4-masted sailing ship, one of three sailing ships in the Star Clipper line. I’m serving as one of the guest speakers on a program packed with speakers and great talks. After all, we are at sea for two full weeks, crossing the Atlantic from the Canaries to Barbados, with nothing but a limitless horizon in view for all that time. And the eclipse!

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

Sailing to the Sun


Cloud Shadows Near Sunset over the Atlantic

As we continue our sail across the Atlantic, our heading takes us southwest, directly toward the setting Sun.

This was the scene last night, a day out from the Canary Islands, as we set our course toward the eclipse intercept point. Our heading of roughly 245° takes us into the setting Sun each evening.

We’re now often under sail alone, with engines off. As Columbus and all trans-Atlantic explorers did, we’re letting the northeast trade winds blow us across the ocean. Under their steady force, we’re making a good 8 to 9 knots, sufficient to get us to the eclipse path on the appointed day and time on November 3.

Moon Amid the Rigging

On that day the Moon, seen here as a waning crescent in yesterday morning’s sky amid our square-rigged sails on the 4-masted Star Flyer, will cover the Sun for 44 seconds.

Tonight, October 28, was a magical night. Many of the eclipse tour folks gathered on the aft deck with all the lights off to lie back on deck chairs and gaze up at the Milky Way, with us now hundreds of kilometres away from any other lights.

We had the Milky Way above, while below, the ocean in our wake was exploding with flashes of bioluminescence. The night was warm and of course windless because we’re travelling with the wind. It was an amazing experience.

— Alan, October 28, 2013 / © 2013 Alan Dyer