22P/Kopff 2022-Aug-23 Dan Bartlett

22P/ Kopff from 2022-08-23
My apologies for the severity of my processing on this image. Here I'm using an APS-C sensor and the RASA8 @ F/2 yielding a 3deg 15' x 2deg 10' FOV.
Yep, Severely over processed to find out how long the tail extended. Nearly 3 hours of exposure time was stacked. What a mess. Artifacts everywhere.
Dan

Observational details:
scope: RASA8 D = 203mm; fl =400mm; F# 2
camera: asi 071mcP
exposure: 54 x180 sec
Seeing: 4/5
Transparency: 8/10
Observer: DEBartlett
Location: June Lake, California, USA

Image info:
WCS transformation ....... Linear
Projection ............... Gnomonic
Projection origin ........ [1515.973695 1011.945139] px -> [RA: 1 39 40.063 Dec: +3 42 10.56]
Resolution ............... 3.874 arcsec/px
Rotation ................. -3.163 deg
Reference system ......... ICRS
Observation start time ... 2022-08-23 11:11:15 UTC
Observation end time ..... 2022-08-23 11:14:15 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 30 N 2357 m
Focal distance ........... 400.37 mm
Pixel size ............... 7.52 um
Field of view ............ 3d 15' 46.7" x 2d 10' 41.5"
Image center ............. RA: 1 39 40.057 Dec: +3 42 10.35
Image bounds:
top-left .............. RA: 1 45 57.780 Dec: +4 52 41.86
top-right ............. RA: 1 32 53.624 Dec: +4 41 55.07
bottom-left ........... RA: 1 46 25.575 Dec: +2 42 14.04
bottom-right .......... RA: 1 33 23.337 Dec: +2 31 28.83

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