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Sept 2022 - Anyone playing tonight?


TerryMcK
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Taking a few flats before I forget. I also have refreshed my darks. However I noticed when I had a look at the FITS header on the darks was they started out at -20C and ended up at +8C after 30 frames were tajen... not good. Then I realised I had put the scope cover on and it started to heat up due to no fresh air under the cover despite the cooler being on. So I whipped the cover off let it cool down again (the camera was warm to the touch) and it got back down to -20C. I started again and got a set of darks that were all at the correct temperature.

 

Moral of the story - make sure you let good ventilation into the cooled camera.

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  • 2 weeks later...

Now the moon is diminishing again I am shooting some widefield S2 on the same target as Saturday night.

The waning moon is up but a bit yellowish.

I had the binoculars out earlier showing Jupiter and Saturn to my wife. Saw 3 moons around Jupiter and could make out Saturn's rings as best as can be done with 80x20s. The Dob is upstairs and would take too long to cool down once I had carried it down and collimated it. So the big binocs are the next best thing.

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