[APBeta] FOV question(s)

[Paul Rodman]

On Jan 19, 2009, at 05:25 PM, David Crum wrote:

> Moving this from the Yahoo forum to here (per Paul's request).
>
> I am having some problems getting a lot of stars in my FOV.  I have
> been playing around with it (as suggested earlier) and I have found
> that the field size does indeed dictate how many stars get placed in
> the FOV.  I am including a screenshot showing my settings.  In my
> example, I am showing IC 1296, along with my 6.7mm eyepiece/16 inch
> scope.
>
> I should be seeing more stars in my FOV at least down to 15-16th mag??
>
> Here is where I put my SS at-
> http://img.photobucket.com/albums/v700/davidthebear/0066.jpg

That's about right for the catalogues you have, since they don't go  
down to Mag 16.

If, for example, I take you field and display the Hubble GSC, I get:

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which shows pretty much all stars down to Mag 16 (I believe). The USNO  
A2.0 goes to dimmer stars:

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However, a recently-reported bug is displaying ALL the USNO stars,  
even those dimmer than Mag 16.

Your answer is to pony up for a deeper catalogue...

Paul R.