Imaging telescopes or lenses:Stellarvue SV70T, Stellarvue 102mm Raptor
Imaging camera:ZWO ASI1600MM-Cool
Mount:Astro-Physics Mach 1 GTO
Guiding telescope or lens:ZWO 60mm f/4.6 Guidescope ZWO 60mm Guidescope
Guiding camera:Starlight Xpress Lodestar x2
Software:Sequence Generator Pro, PixInsight, PHD2, Photoshop CS5
Filters:Astrodon Ha 5nm, Astrodon OIII 3nm
Accessories:QHYCCD PoleMaster, ZWO 8x 1.25" Filter Wheel (EFW), MoonLite CFL 2.5" Large Format Focuser
Resolution: 2304x2880
Dates: Feb. 14, 2017, March 7, 2018, March 11, 2018
Frames:
Astrodon Ha 5nm: 83x240" (gain: 139.00) -20C bin 1x1
Astrodon Ha 5nm: 69x300" (gain: 139.00) -20C bin 1x1
Astrodon OIII 3nm: 125x240" (gain: 139.00) -20C bin 1x1
Integration: 19.6 hours
Darks: ~50
Flats: ~50
Bias: ~250
Avg. Moon age: 20.83 days
Avg. Moon phase: 62.45%
Bortle Dark-Sky Scale: 6.00
Astrometry.net job: 2281195
RA center: 94.376 degrees
DEC center: 22.543 degrees
Pixel scale: 1.599 arcsec/pixel
Orientation: 294.333 degrees
Field radius: 0.819 degrees
Data source: Backyard
This is a blend of data from last year using a Stellarvue 102mm Raptor and the year using a SV70T in a Ha and OIII BiColor palette.
The astonishing shape of the Jellyfish Nebula (IC 443) is a supernova remnant in Gemini. It's due to the resulting shock waves colliding with a molecular front, creating the 'blowback' of billowing strands seen in this image. IC 444 is the nebulous area seen at the top of the image. The two bright golden stars are Mu Geminorum and Eta Geminorum (Propus). This region is estimated to be some 5000 light years from earth.
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