Re: ATM 2nd post - first scope : )

["Eric Claussen" <etclaussen1@yahoo.com>]

    Not all spherical mirrors are F10.  It would be best to measure the
focal length of your mirror before constructing your scope.  It might not be
exactly F10.

Sounds like a great project.  Hope you finish in time.

Eric Claussen
----- Original Message -----
From: <staringinto@space.com>
To: <atm@shore.net>
Sent: Wednesday, July 11, 2001 12:39 PM
Subject: ATM 2nd post - first scope : )


>
> I did not mention the focal length of the mirror in my first post. If I
remember correctly (correct me if I'm wrong) spherical mirrors are generally
f/10.
>
> I hadn't thought about the observing height of the eyepiece, so I'm glad
that issue was raised. I had planned on using an adjustable stool and
observing from the seated position. Is standing preferred/more comfortable?
>
> Also, if anyone can tell me which box I packed the 4-1/4" mirror and
diagonal in the last time I moved, I'd greatly appreciate it! :) :(
>
> Darren Addy
> Web Specialist
> University of Nebraska at Kearney
>
>
> ___________________________________________________________________
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