Re: [ATM] Fw: 20" telescope

["Jan van Gastel" <jhm.vangastel@wanadoo.nl>]

Here's another good (online) design program for Newtonian telescopes:
http://www.catseyecollimation.com/scopcalc.html

Jan
http://home.wanadoo.nl/jhm.vangastel/Astronomy/


> David
>   Go get NEWT telescope program and you can play with the variables to 
> get the best reuslts
> http://home.att.net/~dale.keller/atm/newtonians/newtsoft/newtsoft.htm
>   I would locate the mirror cell as far back as possible but still leave 
> enough room for some way to reinforce the tubing around the end.  Such 

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