Michael A. Phillips' Astro Blog
Showing posts with label
binary
.
Show all posts
Showing posts with label
binary
.
Show all posts
Monday, May 4, 2009
Older focus and collimation test
›
Red filter on Castor in Gemini Good illustration of focus and collimation on the airy disk of a star. Set gain to full, leave gamma off / d...
1 comment:
›
Home
View web version