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I agreeImaging telescope or lens:TEC 140 APO FL
Imaging camera:Atik 460EX Mono
Mount:Astro-Physics Mach1GTO
Guiding camera:Lodestar X2
Software:Sequence Generator Pro, PixInsight 1.8
Filters:Baader Planetarium LRGB CCD 1.25", Astrodon 5nm SII, Astrodon 5nm H-alpha, Astrodon 5nm Olll
Resolution: 1600x1270
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" bin 1x1
Astrodon 5nm Olll: 30x600" bin 1x1
Astrodon 5nm SII: 30x600" bin 1x1
Baader Planetarium B 1.25": 20x180" bin 1x1
Baader Planetarium G 1.25": 20x180" bin 1x1
Baader Planetarium R 1.25": 20x180" 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' 57"
Pixel scale: 1.840 arcsec/pixel
Orientation: 294.852 degrees
Field radius: 0.522
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.
| Sharpless2 Objects |
| Suburban Astrophotography |
| Narrowband imaging |
| The refractors! |
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