[time-nuts] Sidereal time

J. Forster jfor at quik.com
Fri Jan 15 20:36:08 UTC 2010


The two big ones I remember are:

A Boller & Chivens 24"  about 1 degree
A 60"                   about 15 arc-minutes
The MMT is about 1 degree, I think.

-John

=============


>
> jfor at quik.com said:
>> Why do you really NEED super accurate siderial time? If you are using
>> it to point a telescope, you only need it accurate enough to get the
>> guide stars into the field. Remember, the atmosphere refracts kinda
>> randomly.
>
> What's the field of view of a telescope?  (or the guide scope?)
>
> What's the ballpark distortion of the atmosphere?
>
>
>
>
> --
> These are my opinions, not necessarily my employer's.  I hate spam.
>
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