On Mon, 7 Feb 2000 14:24:40 -0500 (EST), you wrote:

> Berthold, about your proposed alignment star selection... I'm not sure
>I follow your meaning. Generally, for error correction, you want stars
>scattered over the sky, not necessarily sharing an alt or azimuth with an
>existing alignment star. Why would you want to get the sort of list you're
>asking for?

Hi Bill,

I see what you mean, but what we talk about is to pinpoint precisely
the derivations of the mount from perfect "square" construction.
Therefore (please correct me if I don't get it right Mel!) we want to
single out ALT movement of the telescope to determin the misalignment
between the two axes (ALT,AZ) of the telescope and the difference
between optical and mechanical axes.

Hope that makes it clearer

Berthold

-------------------
Berthold Hamburger - Cellist
InterNet: b-hamburger@...
Homepage: http://www.geocities.com/CapeCanaveral/9601
Astrophotography: http://www.geocities.com/CapeCanaveral/9601/astrophoto/aphoto.htm