Re: [APML] 60 hour exposure

[Chuck Vaughn <aa6g@aa6g.org>]

Chris,

> John has done a very fine processing job on this one, I would ask if 
> the 60
> hours was actually reqiured for this depth of image, or would an 
> exposure
> half as long been exactly the same.  Also, a comparison with a 60 hour 
> film
> image would be helpful. ;)

How about a 16 hour exposure?

http://www.aa6g.org/Astronomy/ngc7000.jpg  (600KB)

This is a mosaic of 8 2-hour exposures with a 130EDT at f/8 and a 
OG-590 filter. It's not quite as large a field as John's but you'll get 
the idea.

Chuck <aa6g@aa6g.org>


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