Re: Estimating Magnitude

Bjoern Gimle (
Sun, 31 Aug 1997 22:56:43 +0200

>On Fri, 29 Aug 1997 wrote:
>> I'm curious as to how magnitudes of satellites are judged.  Is this
>> just knowing magnitudes of stars and then comparing?  

JAY RESPLER <> replied:

>I have maps with magnitudes of all stars noted on them.  I'll compare a 
>sat to nearby stars. If sat seems midway in brightness between stars of 

I use the same technique, but not with printed maps.
With Rob Matson's SkyMap (
I view the predicted track and stars at a suitable scale and magnitude
limit, and by moving the cursor I get (coordinates and) magnitudes by
pressing q or ? near the star I want.

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