Imaging telescopes or lenses: Astro-Tech AT8RC
Imaging cameras: ZWO ASI183MM-Pro
Mounts: iOptron iEQ45 Pro
Guiding telescopes or lenses: Astro-Tech AT8RC
Guiding cameras: QHYCCD QHY5-III 178M
Focal reducers: Astro Physics CCDT67
Software: PhD2 · StarTools · Deep Sky Stacker (DSS) · Photoshop CC · Astro Photography Tool - APT Astro Photography Tool
Filters: Asronomik Ha CCD filter 6nm · ZWO new B · ZWO new G · ZWO new R
Accessory: ZWO EAF · ZWO EFW Mini · Teleskop Service TSFLIP Flip Mirror and Off Axis Guiding System
Dates:Oct. 22, 2020 , Oct. 30, 2020
Frames:
Asronomik Ha CCD filter 6nm: 16x900" (gain: 100.00) -5C bin 2x2
ZWO new B: 8x300" (gain: 100.00) -5C bin 2x2
ZWO new G: 8x300" (gain: 100.00) -5C bin 2x2
ZWO new R: 8x300" (gain: 100.00) -5C bin 2x2
Integration: 6.0 hours
Darks: ~30
Flats: ~24
Flat darks: ~25
Avg. Moon age: 10.04 days
Avg. Moon phase: 68.85%
Bortle Dark-Sky Scale: 6.00
Astrometry.net job: 3972135
RA center: 23h 20' 42"
DEC center: +61° 11' 34"
Pixel scale: 0.941 arcsec/pixel
Orientation: -87.368 degrees
Field radius: 0.394 degrees
Resolution: 2527x1649
Locations: Backyard, Champaign, IL, United States
Data source: Backyard
NGC 7635, the Bubble Nebula. A bubble 10-15 pc across blown by the wind of the star SAO 20575. The surrounding nebulosity is a molecular cloud (presumably the one SAO 20575 formed from) that is being dissociated and ionized by the star's UV light.
This is my first try at HaRGB.
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