From an Interesting Engineering online article:
Morgunov said, “This picture is two different types of photos, a long exposure (to capture earthshine) and a fast shutter to capture the illuminated side.”
He continued to explain the additional images he used, which created the final piece: “The illuminated side is 500 photos of 1/60 at 100iso, was stacked and sharpened in autostakertt3 and registax6. The earthshine was around 15 photos at 3-second expo w/ 1600iso stacked and sharpened in autostakertt3 and registax6. I blended the two photos together in photoshop (a lot more work then it seems) added a star trail background gave it glow.”
https://www.instagram.com/ericmorgunov/
Eric Morgunov’s image of the Moon stands out for one main reason: it’s 500 pictures of the Moon brought together to create one incredible 52 megapixel photograph.
Boomers Daily 