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I agreeImaging telescope or lens:Skywatcher Esprit 150ED
Imaging camera:Atik 11000
Mount:10 Micron GM1000 HPS
Guiding telescope or lens:Skywatcher Esprit 150ED
Software:PixInsight, PHD, Adobe Photoshop CS5 CS5, Stark Labs Nebulosity 3.1
Filter:Baader Planetarium L,R,G,B,Ha,Oiii,Sii
Accessories:Atik EFW2 Filter Wheel, Atik OAG, Starlight Xpress Lodestar
Resolution: 4014x2623
Dates:Dec. 1, 2013
Frames: 18x1800"
Integration: 9.0 hours
Avg. Moon age: 27.83 days
Avg. Moon phase: 3.22%
Astrometry.net job: 134174
RA center: 94.267 degrees
DEC center: 22.496 degrees
Pixel scale: 1.725 arcsec/pixel
Orientation: 91.453 degrees
Field radius: 1.149 degrees
The Jellyfish nebula is a supernova remnant in the constellation of Gemini. Located around 5000 light years away, its exact age is unknown, but it appears to have blown at least 3000 years ago, possibly much longer.
Imaged here in two narrowband wavelengths, Hydrogen Alpha (7nm) and Oxygen III. The Ha emission is dominant, but there are tantalising glimpses of Oiii at the extremities.
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