Via Flickr:
I tried comet guiding again. Tail length was about 13 arcminutes at the night. North is up.
This 1,236 x 833- pixel frame is cropped of full 5,634 x 3,753 - pixel frame. If I use a scope with focal length about 2.4m, I may be able to take a frame of this scale without cropping.
equipment: FSQ-106ED and EOS 5Dmk2-sp2, modified by Seo san on EM-200 temma 2 jr. autoguided with FS-60C, Lodestar Autoguider, and PHD guiding
exposure: 3 times 20 minutes at ISO 800 and f/5.0
The first exposure started at 18:27:36UTC October 13, 2013
site: 1,556m above sea level at lat. 36 41 32 N. and long. 138 39 19 E. near Lake Nozori, Gunma
Ambient temperature was around 2 degrees Celsius, and SQM-L read as 21.49 at the best.
I tried comet guiding again. Tail length was about 13 arcminutes at the night. North is up.
This 1,236 x 833- pixel frame is cropped of full 5,634 x 3,753 - pixel frame. If I use a scope with focal length about 2.4m, I may be able to take a frame of this scale without cropping.
equipment: FSQ-106ED and EOS 5Dmk2-sp2, modified by Seo san on EM-200 temma 2 jr. autoguided with FS-60C, Lodestar Autoguider, and PHD guiding
exposure: 3 times 20 minutes at ISO 800 and f/5.0
The first exposure started at 18:27:36UTC October 13, 2013
site: 1,556m above sea level at lat. 36 41 32 N. and long. 138 39 19 E. near Lake Nozori, Gunma
Ambient temperature was around 2 degrees Celsius, and SQM-L read as 21.49 at the best.
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