I believe that USNO B1.0 goes down to to V = 21.

Jim Jones

On 4/2/2013 3:42 PM, P. Clay Sherrod wrote:
> I doubt that you are going to see any stars to 20th magnitude on Guide; the limit is
> imposed by the star catalog that you have defaulted to with the program and I am not
> aware of any star catalogs that are commonly used that go down that deep. The sheer
> size of such a catalog would be far beyond the capacity of your computer to hold it.
>
> Dr. Clay
> _____
> Arkansas Sky Observatories
> MPC H45 - Petit Jean Mountain South
> MPC H41 - Petit Jean Mountain
> MPC H43 - Conway West
> http://www.arksky.org/
>
> ----- Original Message -----
> From: "tom" <loeblt@...>
> To: <guide-user@yahoogroups.com>
> Sent: Tuesday, April 02, 2013 5:39 PM
> Subject: [guide-user] Guide Question
>
>
>> Hi,
>>
>> Normally, when I view the screen for my ccd size showing the ccd frame,
>> I want to see 20th magnitude. As I zoom out there are fewer stars
>> showing but presently there are still too many stars showing in the
>> wider views. How do I change the rate at which the stars disappear as I
>> zoom out without changing the zoomed-in values of 20th magnitude? I use
>> the mouse wheel to zoom.
>>
>> Tom
>>
>>
>>
>> ------------------------------------
>>
>> To unsubscribe from this group, send an empty email to:
>> guide-user-unsubscribe@egroups.comYahoo! Groups Links
>>
>>
>>
>
>
> ------------------------------------
>
> To unsubscribe from this group, send an empty email to:
> guide-user-unsubscribe@egroups.comYahoo! Groups Links
>
>
>
>