Imaging telescopes or lenses: Samyang 135mm f/2
Imaging cameras: ZWO ASI071MC PRO CMOS OSC
Mounts: Orion Azeq Atlas pro
Guiding telescopes or lenses: ASTRO TECH AT66ED Guiding
Guiding cameras: Orion Starshoot Autoguider
Software: PixInsight · Stark Labs pHD guiding PHD2 · EQMOD, Stellarium, Stellarium Scope, PHD, Backyard EOS, Astro Tortilla Nebulosity 4
Filters: Optolong L-eNhance 2" · Optolong L-eXtreme 2" · Zwo Filter Drawer
Accessory: Thousand Oaks Dew Controller
Dates:Nov. 23, 2020 , Nov. 24, 2020 , Nov. 25, 2020 , Dec. 4, 2020 , Dec. 6, 2020
Frames:
Optolong L-eNhance 2": 63x300" (gain: 90.00) -10C
Optolong L-eXtreme 2": 110x600" (gain: 90.00) -10C
Optolong UV-IR: 70x30" (gain: 90.00) -10C
Integration: 24.2 hours
Darks: ~30
Flats: ~30
Bias: ~50
Avg. Moon age: 13.53 days
Avg. Moon phase: 72.90%
Bortle Dark-Sky Scale: 7.00
Mean SQM: 18.48
Astrometry.net job: 4070354
RA center: 5h 41' 51"
DEC center: +27° 55' 15"
Pixel scale: 3.794 arcsec/pixel
Orientation: -106.366 degrees
Field radius: 3.823 degrees
Resolution: 5142x5125
Locations: Home backyard red turning white zone Bortle 8, Gilbert, Az, United States
Data source: Backyard
SH2-240 is a supernova remnant in Taurus. This turned out to be one of the most difficult objects to process for me. Although I aquired over 23 hours of data using the L-xtreme filter, it wasn't enough, probably because of my Bortle 7-8 skies. I know it is noisy and could use twice the amount of data. But I want to move on to other targets. Mainly galaxies using one of my other scopes. So for now I will have to settle with what I have and maybe capture this target another time from my Bortle 4 site. Clear skies! Mike
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