Back to Home

ATM Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Amateur Telescope Making | Post

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Dall-Kirkham Primary Mirror Testing

Forum List | Follow Ups | Post Message | Back to Thread Topics
Posted by Andre Burger/">Andre Burger on May 14, 1999 12:55:18 UTC

I am in the process of polishing a 200mm / f2.47 primary mirror for my Dall-Kirkham telescope. Can anyone give me advise on how to test & figure this mirror properly. I have built a Foucault tester and derived formulae to correct for off-axis abberation - ie. the distance between source & image formation of the light source (foucault tester). Any comments and/or advise will be appreciated.

Follow Ups:

Login to Post
Additional Information
About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
Unless otherwise specified, web site content Copyright 1994-2023 John Huggins All Rights Reserved
Forum posts are Copyright their authors as specified in the heading above the post.
"dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
are trademarks of John Huggins