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
Nasmyth Design

Forum List | Follow Ups | Post Message | Back to Thread Topics
Posted by Ed on June 5, 2005 10:08:05 UTC

Hello everyone this is my first post.
I have a few of questions regarding a different telescope design that I will be embarking on. I have built a few telescopes before and this one should be a challenge.
I am working on the principle of the Nasmyth design on a 30inch mirror.
My first question is, will a mirror made of plate glass 30mm thick be to thin at f4.5 (f18 with the cassegrain secondary)? It will naturally have a 27 point flotation cell.
The second question, is there any web sites on the making of a telescope with the Nasmyth design?
And the third, does anyone know if there is any place in Australia that coats mirrors of this size?
Your comments will be most appreciated!
Regards Ed.

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 1994-2022 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