George Normandin wrote:
This is one of my few images of the past months. It's a 10:10:15 minute
exposure with an STL-1301E thru an OGS 20-inch RC Cass working at around
F/5. This image was taken at nearly full moon, so I suspect that is the
cause of the weird blue corners - i.e., bright sky vignetting that was not
completely processed out. The focal reducer lens was never intended for this
use.

For more info on the Crescent, see:
http://www.kopernik.org/images/archive/n6888.htm

George N



I've been wondering what happened to you. Sounds like you have my
clouds. They broke for a bit tonight then seeing went so far south I
had to give up after an hour. Forecast isn't good. I make a trip to
Lincoln for a few days later this week. At least it will be at full
moon time but the forecast is for clear those days of course. I think
the new telescope hex works for fixed cameras as well.

I did this guy a couple months back in HaRGB but don't particularly like
the result. Should try processing it again. Hard to get going with the
weather we've been having. Typical for October so I shouldn't complain.

Rick

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