#1  
Old 03-10-2009, 10:07 AM
Moon's Avatar
Moon (James)
This sentence is false

Moon is offline
 
Join Date: Oct 2008
Location: Melbourne
Posts: 1,147
Thumbs up Easy way to measure flexure

I want to share this great idea from Sander on the QHY yahoo group.

http://deepskystacker.wikispaces.com...ential+flexure

It's the simplest way I have seen to measure flexure.
Reply With Quote
  #2  
Old 03-10-2009, 10:27 AM
Moon's Avatar
Moon (James)
This sentence is false

Moon is offline
 
Join Date: Oct 2008
Location: Melbourne
Posts: 1,147
(I hope this is the right forum for this post)

Some of my results using this method:
ED127 over 1 hour has Dx=3.17 and Dy=6.31
Old 8" SCT with no mirror lock over 23 minutes has Dx= 19.12 and Dy=40.12
Reply With Quote
  #3  
Old 03-10-2009, 06:29 PM
Lester's Avatar
Lester
Registered User

Lester is offline
 
Join Date: Jan 2006
Location: E.P. S.A.
Posts: 4,963
Thanks for that James, it may be very useful when I get back into DSO imaging.

Slight problem here for the past 3 months,= cloud.
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 06:06 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Bintel
Advertisement