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I agreeImaging telescope or lens:Sky-Watcher Esprit 100ED
Imaging camera:ZWO ASI1600MM Cooled PRO
Mount:Orion Atlas EQ-G
Guiding telescope or lens:Orion 50mm Guide Scope with helical focusing
Guiding camera:Lacerta M-Gen II Autoguider
Software:Main Sequence Software Sequence Generator Pro, v3.0, Photoshop CC, Adobe Lightroom CC, Pleaides PixInsight Core 1.8
Filters:Astrodon OIII 3nm-31mm, Astrodon SII 3nm-31mm, Astrodon Ha 3nm-31mm
Resolution: 2409x3186
Dates:Sept. 17, 2018, Sept. 19, 2018, Sept. 23, 2018, Oct. 12, 2018
Frames:
Astrodon Ha 3nm-31mm: 217x180" (gain: 139.00) -15C bin 1x1
Astrodon OIII 3nm-31mm: 74x180" (gain: 139.00) -15C bin 1x1
Astrodon SII 3nm-31mm: 64x180" (gain: 139.00) -15C bin 1x1
Integration: 17.8 hours
Darks: ~30
Bias: ~50
Avg. Moon age: 8.55 days
Avg. Moon phase: 59.62%
Bortle Dark-Sky Scale: 4.00
Astrometry.net job: 2693875
RA center: 308.618 degrees
DEC center: 46.984 degrees
Pixel scale: 1.416 arcsec/pixel
Orientation: 9.426 degrees
Field radius: 0.785 degrees
Locations: Monterey Pines Observatory, Monterey, California, United States
Data source: Backyard
Sh2-115 is northwest of Deneb in the constellation Cygnus. It is a emission nebula whose complex glowing patterns are powered by an embedded open star cluster, Berkeley 90. In the top left of the frame is Abell 71 (PLN 85+4.1), now thought to be misclassified as a planetary nebula, but is an area of gas concentration associated with Sh2-115. All in all, it is a remarkably rich area of nebular structure in the night sky.
Reworked the stars and cooled the color temperature a bit
Reduced noise and reworked colors to reveal nebular detail
Removed a slight gradient in the SII channel
| SF Bay Area Imagers |
| Suburban Astrophotography |
| ZWO ASI1600MM/QHY163M |
| Sharpless2 Objects |
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