Image of the day

From the
ATWB Customer Gallery

Happy Halloween: Witch's Broom Nebula

My Account

New to Astromart?

Register an account...

Poll

2020 President - NO COMMENTS (take to Politics Forum)


Results
Previous Polls

Need Help?

What do I have here?

Started by Walter, 04/12/2002 02:13PM
Posted 04/12/2002 02:13PM Opening Post
Well, I just finished making a mask to check readings on my 10" f/6, and I would like some of you out there to tell me how close I am. Actually, I think I'm darn close, but some of you may have a number crunching program that will tell me. I'm an old geezer and math was a long time ago!
10" mirror, 121.2" RC. I checked at the 32%, 70%, and 95% zones. Readings (avg of 4) are. 0, .025, .101, and .180. My math says I'm only a few thousands away from perfect, if I understand the process.
Anxiously awaiting your responses.
Walt