RE: [APML] "challenge"

["Gene Horr" <genehorr@houston.rr.com>]

> -----Original Message-----
> From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> Behalf Of Kevin Wigell
> Sent: Thursday, December 19, 2002 2:58 PM
> To: astro-photo@seds.org
> Subject: Re: [APML] "challenge"

> I've been thinking about this. Yes it is a challenge. Any exposure long
> enough (on film) to give a decent image of the Crab would show motion on
> Saturn, and also Saturn would be grossly overexposed. Of course 
> one could do
> a composite, but that would be cheating. I think this is one area 
> where CCD
> stands a much better chance of success.

Two 'scopes.  One doing long exposure Ha with CCD, the other doing
short exposure RGB frames.  Overlay the RBG over the false colour
Ha.  You're right, though, that would be easier with CCD.

Gene Horr
genehorr@houston.rr.com

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