A composite of the August 21, 2017 total solar eclipse, with images from both the moments of second contact (start of totality) and third contact (end of totality) combined to show the limbs with the last and first bits of sunlight showing, plus longer exposures of the corona. So this combines images from the start and end of totality, and is not something you could actually see!

So this is a but of a cheat to be sure, but it illustrates where on the limb of the Moon the sunlight disappeared then reappeared in Baily’s Beads for me at my site in the Teton Valley of Idaho.

And the locations of the Baily’s Beads are not 180° apart on the limb. Why? Because I was not right on the centreline of the path but north of the centreline, by choice, to get a location with a good scenic horizon toward the eclipsed Sun.

The star at left is Regulus.

This is a blend of short 1/2500 and 1/4000 second exposures for the Baily’s Beads, and longer 1/640 and 1/100 second exposures for the corona. All were through the Astro-Physics 106m Traveler refractor at f/5 with the Canon 6D MkII.