Imaging telescopes or lenses: Explore Scientific ED165CF FPL-53
Imaging cameras: ZWO ASI1600MM-PRO
Mounts: Astro-Physics Mach 1 GTO
Guiding telescopes or lenses: Orion 80mm Short Tube
Guiding cameras: Starlight Xpress Lodestar x2
Software: Adobe Photoshop CS5.5 · PHD2 · Sequence Generator Pro · PixInsight · SkySafari Pro
Filters: Astronomik Deep-Sky B · Astronomik Deep-Sky G · Astronomik Deep-Sky R · Astrodon OIII 3nm
Accessory: ZWO 8x 1.25" Filter Wheel (EFW) · QHYCCD PoleMaster · Hotech 2" SCA Self-Centering Field Flattener · MoonLite CFL 2.5" Large Format Focuser
Dates:Aug. 17, 2020 , Aug. 22, 2020 , Aug. 23, 2020
Frames:
Astrodon OIII 3nm: 506x120" (gain: 200.00) -20C bin 1x1
Astronomik Deep-Sky B: 31x60" (gain: 0.00) -20C bin 1x1
Astronomik Deep-Sky G: 30x60" (gain: 0.00) -20C bin 1x1
Astronomik Deep-Sky R: 43x60" (gain: 0.00) -20C
Integration: 18.6 hours
Darks: ~50
Flats: ~50
Bias: ~250
Avg. Moon age: 12.18 days
Avg. Moon phase: 14.75%
Bortle Dark-Sky Scale: 8.00
Astrometry.net job: 3799228
RA center: 20h 50' 1"
DEC center: +13° 33' 39"
Pixel scale: 0.681 arcsec/pixel
Orientation: 281.869 degrees
Field radius: 0.155 degrees
Resolution: 1282x1028
Locations: Backyard White Zone Observatory, Taylor, MI, Michigan, United States
Data source: Backyard
This was a major challenge for me at 0.68"/pixel with my ES 165 at only 2 arc minutes. My inspiration for this was shot with a 80cm f/7 AstroOptik Keller corrected cassegrain in Chili:
http://www.chart32.de/component/k2/planetaty/abell-72-pk-59-18-1-planetary-nebula-in-delphinus
This faint planetary nebula, Abell 72 (PK 059+18.1) in the constellation Delphinus, is an expanding glowing shell of ionized gas ejected from an old red giant star. The beautiful object of George O. Abell's Catalog of Planetary Nebula is 5'700 ± 1150 light years from earth and about 2 light years across.
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