Re: ATM JAVA Spot Diagram Applet

[rgb@ncube.com (Bob Bond)]

Thanks for the encouraging words.

The interesting thing to me is even in a fairly big field on a fast
amateur sized scope, the coma is small relative to the size of the
field.  Playing with the code convinced me that most "coma" that people
see in an eyepiece is really due to the eyepiece, not the mirror.

Your suggestion is a good one... I'll take a look.

                        Bob

>From mbartels@efn.org Tue May 27 16:44 PDT 1997
>Date: Tue, 27 May 1997 16:40:58 -0700
>From: Mel Bartels <mbartels@efn.org>
>Mime-Version: 1.0
>To: Bob Bond <rgb@ncube.com>
>Cc: atm@shore.net, cd@wwa.com
>Subject: Re: ATM JAVA Spot Diagram Applet
>Content-Transfer-Encoding: 7bit
>Content-Type: text/plain; charset=us-ascii
>
>Very interesting Java applet!
>
>I gave it a good test, and have already found a practical application
>for it, namely, how much coma can a newtonian reflector give off axis
>and yet still be tolerated on the ccd chip, that is, coma not to exceed
>a pixel.  A suggestion: somewhere on the image put a scale or ruler in
>arcseconds.
>-- 
>Clear skies, Mel Bartels    Programmer/Analyst, amateur astronomer
>Eugene, Oregon, USA         homepage: http://www.efn.org/~mbartels
>mailto:mbartels@efn.org     atm, atm-digest list-owner
>Motorize A Dob: http://zebu.uoregon.edu/~mbartels/altaz/altaz.html
>