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Comet
PanSTARRS C/2015 O1


Object : Comet, PanSTARRS C/2015 O1
Coordinates/Direction : -
Object size : -
Object magnitude : 11, at maximum
More to know : You can read more about the comet on Seiichi Yoshida's homepage:
http://www.aerith.net/ comet/ catalog/ 2015O1/ 2015O1.html

2018-04-13, Comet PanSTARRS C/2015 O1

Comet: PanSTARRS C/2015 O1, Sweden 2018
Date : 2018-04-13
Time (UT) : 21:12 to 22:01
Mount : SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019)
Guide : QHY5 camera with 400 mm f/6.3 lens
Lens/telescope : TS130 APO f/7 910mm, 3" focuser
Corrector/Barlow : 3" field flatter, x1. T48 connector to camera
Field (FOV) : 2.25 x 1.5o (full frame) before crop
camera : Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit
camera temperature: About 8 degree Celsius above surrounding temperature
Film/CCD : Raw, Cr2
Filter : none
Control system : Mount by EQMOD, camera by APT, guide by PHD2, focuser by USB-focus, ASCOM Windows PC
Exp. time : 41*60 seconds at 800iso
Image process tool : Siril, Gimp, Irfanview
Processing : Dark and flat calibrated
Site : Sweden, Stockholm, Hagsätra. Bortle class 9
Comment : I'm almost at the end of the list of comets that I left because it wasn't much to see. Now I process them because it still a bit interesting to see what astrophotographing can be done from a high light polluted city. The magnitude when I took this photo of the comet was about 12. It's easy to find it but not on this low resolution image, it's in the center. Look at next where it's zoomed in.

Crop around the comet

Comet: Panstarrs C/2015 O1, Sweden 2018
Date : 2018-04-13
Time (UT) : 21:12 to 22:01
Comment : Because of the comet's speed relative to the stars it ha been elongated. The camera follow the stars, not the comet in this case.
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