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The Great US Solar Eclipse, August 21, 2017


This website is mainly dedicated to astronomy, covering the solar and planetary observations to the deep-sky photography. There are also some sections treating some effects linked to the Earth atmosphere, like lightnings and rainbows. All pictures have been taken by the author. In the case of download and further use, please simply mention the source. This page is temporarily devoted to the famous solar eclipse of August 21, 2017.

About two and a half minutes of Black Sun

The Solar Corona @ UTC 17:45 from Glendo, Wyoming, USA
Setup: Canon EOS 100D + 400mm f/5.6 L, Settings: Exp 1/8 s, f/11, ISO 400, Time: August 21, 2017, UTC 17:45
One hidden star on this picture? Yes, but there are much more than only one. Please click here to identify more suns!

Solar Eclipse’s Crescent and Prominences during Totality

The Eclipse @ UTC 16:51
Setup: Canon EOS 100D + 400mm f/5.6 L, Settings: Exp 1/800 s, f/11, ISO 200, Astrosolar Filter (density 5)
Sunspots are clearly visible.
@ UTC 17:39
Setup: Canon EOS 100D + 400mm f/5.6 L, Settings: Exp 1/1600 s, f/11, ISO 400, Astrosolar Filter (density 5)
@ UTC 17:44
Setup: Canon EOS 100D + 400mm f/5.6 L, Settings: Exp 1/60 s, f/11, ISO 400, Astrosolar Filter (density 5)
In this extreme phase just before the totality, the profile of the mountains of the Moon is visible, called Baily's beads or diamond ring effect.
@ UTC 17:46
Totality of the Eclipse
Setup: Canon EOS 100D + 400mm f/5.6 L, Settings: Exp 1/250 s, f/11, ISO 400, filter removed
@ UTC 17:46
Setup: Canon EOS 100D + 400mm f/5.6 L, Settings: Exp 1/500 s, f/11, ISO 400, filter removed
In this extreme phase just after the totality, the light from the photosphere reappairs strongly, but the tiny prominences remains visble mainly in emission Hα.
@ UTC 18:29
Setup: Canon EOS 100D + 400mm f/5.6 L, Settings: Exp 1/800 s, f/11, ISO 200, Astrosolar Filter (density 5)

Earthshine during the Eclipse

Earthshine, the Solar Corona (atmosphere of the Sun) and Regulus @ UTC 17:45 from Glendo, Wyoming, USA
Setup: Canon EOS 100D + 400mm f/5.6 L, Settings: Exp 1/4 s, f/11, ISO 1600, Time: August 21, 2017, UTC 17:46
The lunar maria become visible. (Reference image: Wikipedia)

A Special Magic Stamp dedicated to the Eclipse

The U.S. Postal Service is hosting the national release of its first-ever heat-sensitive thermochromic stamps during a summer solstice event Tuesday at the University of Wyoming Art Museum.
Please click here or on any stamp to see the animated GIF, illustrating the thermochromic ink.

The site of Glendo, Wyoming, USA, located precisely on the path of the totality

Path of the eclipse through the USA on August 21, 2017
Please click here for getting the high-resolution map.
Exit Glendo on Interstate Highway 25 North Observation area in Glendo
Background: a 3km-long loaded coal train
Camping car of Cathy and Jon The setup used for taking the pictures The Senior VP Sales observing Alternative for observing the eclipse Huge traffic jam on the way back
Bonus linked to this eclipse: Download a wallpaper designed for your Samsung Galaxy S10

Composite photograph of the solar eclipse (from Glendo, Wyoming, USA) and the Bernese Alps with Eiger, Mönch and Jungfrau (from Prêles, Switzerland).
Free of charge picture. No copyright.

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