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I agreeImaging telescopes or lenses:Celestron Rowe-Ackermann Schmidt Astrograph
Imaging cameras:ZWO Optical ZWO ASI 1600MM cool
Mounts:Celestron CGE pro
Guiding telescopes or lenses:Baader Vario Finder 60mm
Guiding cameras:LACERTA MGEN
Software:firecapture , Photoshop CC , Stellarium , Pleiades Astrophoto PixInsinght 1.8 RC7 , Deep SkyStacker 3.3.4
Filters:Baader Luminance 2" , Baader f/2 Highspeed 2" OIII Filter , Baader f/2 Highspeed 2" H-Alpha Filter
Dates:Feb. 13, 2018 , Feb. 14, 2018 , Feb. 15, 2018
Frames:
Baader f/2 Highspeed 2" H-Alpha Filter: 333x100" (gain: 139.00) -40C bin 1x1
Baader f/2 Highspeed 2" OIII Filter: 256x100" (gain: 139.00) -40C bin 1x1
Baader Luminance 2": 120x30" (gain: 139.00) -40C bin 1x1
Integration: 17.4 hours
Darks: ~100
Flats: ~100
Bias: ~200
Avg. Moon age: 28.27 days
Avg. Moon phase: 2.40%
Bortle Dark-Sky Scale: 4.00
Astrometry.net job: 3811971
RA center: 23h 47' 5"
DEC center: +81° 0' 46"
Pixel scale: 1.264 arcsec/pixel
Orientation: 101.839 degrees
Field radius: 1.025 degrees
Resolution: 4656x3520
Locations: Sternwarte am Bärenstein, Bärenstein, Sachsen, Germany
Data source: Backyard
Sh2-174 is the most northern Sharpless object. Sh2-174 is an unusual ancient planetary nebula. Usually the white dwarf can be found very near the center of the planetary nebula. But in the case of Sh2-174 it off to the right. (It is the very blue star near the center of the blue gas). This asymmetry is due to the planetary nebula's interaction with the interstellar medium that surrounds it.
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