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Re: [APML] DWB111 Comparison



The difference in the stars is the difference between a 3nm(?)
H-a filter and the total response of TP, about 400nm.

Chuck

---------------------------------

> Or maybe the difference in limiting magnitudes between 5" and 12.5"
> scopes?
> 
> Torsten
> 
> On Thu, 1 Nov 2001, Bobby Middleton wrote:
> 
>> I'm surprised at the difference of stars recorded. I presume this is a
>> result of the Ha filter on the CCD image.
>> Bobby Middleton


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