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PanSTARRS C/2014 W2

Object : Comet, PanSTARRS C/2014 W2
Coordinates/Direction : -
Object size : -
Object magnitude : 11, at maximum
More to know : You can read more about the comet on Seiichi Yoshida's homepage: comet/ catalog/ 2014W2/ 2014W2.html

Comet PanSTARRS C/2014 W2, 2016-04-09:

Comet PanSTARRS C/2024 W2, Sweden 2016 (Click on image to get one in higher resolution, open in a new window)
Date : 2016-04-09
Time (UT) : 21:30 to 22:23
Mount : SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019)
Lens/telescope : TS130 APO f/7 910mm (682mm, f/5.2), 3" focuser
Corrector/Barlow : Riccardi 2.5" field flatter, x0.75. T48 connector to camera
Field (FOV) : 3.0 x 2.0o (full frame) before crop
camera : Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit
camera temperature: About 6o C 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 : 45x60 seconds, 800iso
Image process tool : Siril, Gimp, Irfanview
Processing : dark and flat calibrated
Site : Sweden, Stockholm, Hagsätra. Bortle 9
Free view Az: 20o-90o, 165o-185o, La: 20o-55o
Comment : This was the second test with relative auto guiding. It fail, it corrected the speed in wrong direction. It had something to do with the position of the telescope relative the pier, with or without a flip. The Masterflat doesn't correspond to all dust speckles I have on this photo and give an ugly look. Maybe the tail 10 o'clock, very weak. This is a kind of record for me, never seen that weak object before.
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