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Comet
C/2017 O1 ASASSN


Comet C/2017 O1
Object : Comet C/2017 O1 ASASSN
Date : 2017-09-26
Time (UT) : 00:06 to 01:00
Mount : EQ6 Pro Synscan
Lens/telescope : Sigma APO 150mm f/2.8 (f 4.0)
Filter : none
Camera : Canon EOS 6D
Exp. time : 45x60 seconds at ISO800
Image process tool : AstroImageJ with my own macros, Fitswork, IrfanView.
Processing : demosaic, align rgb, no dark or bias, use dithering instead, median stack.
Site : Sweden, Stockholm, Ingarö.
Comment : This object was very weak and hard to align in the sacking process. But still something in the end.
More to know : You can read more about the comet on Seiichi Yoshida's homepage:
http://www.aerith.net/ comet/catalog/ 2017O1/2017O1.html

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