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Imaging telescopes or lenses: TEC 140 APO FL
Imaging cameras: Atik 460EX Mono
Mounts: Astro-Physics Mach1GTO
Guiding cameras: Lodestar X2
Software: Sequence Generator Pro · PixInsight 1.8
Filters: Astrodon 5nm SII · Baader Planetarium LRGB CCD 1.25" · Astrodon 5nm H-alpha · Astrodon 5nm Olll
Dates:Aug. 25, 2019 , Aug. 26, 2019 , Aug. 27, 2019 , Aug. 28, 2019 , Sept. 2, 2019 , Sept. 4, 2019
Frames:
Astrodon 5nm H-alpha: 30x600" 0C bin 1x1
Astrodon 5nm Olll: 30x600" 0C bin 1x1
Astrodon 5nm SII: 30x600" 0C bin 1x1
Baader Planetarium B 1.25": 20x180" 0C bin 1x1
Baader Planetarium G 1.25": 20x180" 0C bin 1x1
Baader Planetarium R 1.25": 20x180" 0C bin 1x1
Integration: 18.0 hours
Avg. Moon age: 18.63 days
Avg. Moon phase: 19.30%
Bortle Dark-Sky Scale: 6.00
Astrometry.net job: 3115581
RA center: 22h 19' 22"
DEC center: +56° 6' 55"
Pixel scale: 1.841 arcsec/pixel
Orientation: 64.936 degrees
Field radius: 0.522 degrees
Resolution: 1600x1270
Locations: Home, Seattle, WA, United States
Data source: Backyard
This is Sharpless 132: a rather complex nebula approximately 10200 light years distant. The gasses glow and are shaped by ultraviolet radiation and stellar winds from several very hot stars in the vicinity. The nebula may have been a star nursery at one time but shows no signs of new star formation now. I haven't posted any "star pictures" for a while because the last one (Sh2-112) frankly burned me out a bit: it was a very tough image to work on. This one came together much more easily. The palette is plain old SHO: the only color manipulation was an application of SCNR to reduce the green haze in the original combination.
Suburban Astrophotography |
Narrowband imaging |
Sharpless2 Objects |
The refractors! |
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