Registar allows you to do a star count on an image. I have no idea how accurate (or not) this is, but it’s a bit of fun to run it on some of the “Milky Way” images, and here’s what I get as a result.
1) Cocoon nebula – 2-framer with the Hyperstar III – 61,405 stars.
2) The CTB1 region in Cassiopeia (near NGC7790) – 2-framer with the Sky 90 – 68,228 stars.
3) The recent North America nebula image – 3-framer with the Sky 90 – 79,652 stars.
4) Cocoon nebula – 3-framer with the Hyperstar III – 98,791 stars.
5) Ruchbah region in Cassiopeia – 4-framer with the Hyperstar III – 121,497 stars.
As I said – just a bit of fun really – but the numbers always come out a lot less than I would “guesstimate” in looking at the images.
