Re: [APML] Leo Duet

[George Anderson <georgea@cam.org>]

At -60C you would need MIL QPL parts throughout in order to assure
operation. At -30C a lot of commercial parts will have difficulty.

George Anderson
Montreal Canada

Clear skies and good health

"John C. Mirtle" wrote:
> 
> Very nice shot Chris,
>     Wonderful detail in the galaxies, even if you only had 4 arc sec seeing.
> I am a bit surprised by how warm you ran your CCD temperature though. Our
> HIGH temperature in the prairies is -25C today, and has been like this for
> about a week. Needless to say there is not a lot of AP going on in western
> Canada right now. If it was possible to shoot this cold, (-30C at night or
> lower) a single stage Peltier cooler would hit somewhere around -60C. I
> wonder if we need dark frames when shooting that low??
>     Nice to see there are a few people are able to catch a few photons and
> put them to good use. :-)
> 
> John Mirtle
> The Great White North
> 
> ----- Original Message -----
> From: "Chris Schur" <cschur@cybertrails.com>
> To: "APML" <astro-photo@seds.org>
> Sent: Friday, March 07, 2003 8:01 PM
> Subject: [APML] Leo Duet
> 
> Hi all,
> 
> Id like to share this brand new image with you, hot off the press.  If you
> have the time, please check out one of the larger resolution images, there
> is plenty of detail to see in this one:
> 
> http://www.psiaz.com/schur/astro/ccdimagepages/m65-66.html
> 
> Comments Welcomed!
> 
> Chris
> Astrophotograpy site: http://www.PSIAZ.com/schur/astro/index.html
> 
> _______________________________________________
> Astro-Photo mailing list
> Astro-Photo@seds.org
> http://seds.org/mailman/listinfo/astro-photo
_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo