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Jellyfish Nebula (IC 443), 


            Frank Kane
Jellyfish Nebula (IC 443)
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Jellyfish Nebula (IC 443)

Technical card

Imaging telescopes or lenses: Sky-Watcher StarLux 190MN

Mounts: Software Bisque Paramount MyT

Software: Software Bisque The Sky X Pro  ·  Pleiades Astrophoto PixInsight

Filters: Astronomik 6nm H-alpha OII and SII

Accessory: MoonLite Focuser w/High Res Stepper Motor

Dates:Jan. 6, 2020

Frames: 40x600"

Integration: 6.7 hours

Avg. Moon age: 10.39 days

Avg. Moon phase: 79.89%

Basic astrometry details job: 3166068

RA center: 6h 17' 15"

DEC center: +22° 29' 45"

Pixel scale: 1.114 arcsec/pixel

Orientation: 265.529 degrees

Field radius: 0.535 degrees

Resolution: 3016x1689

Locations: My Driveway, Winter Springs, FL, United States

Data source: Backyard


The Jellyfish Nebula is a supernova remnant in Gemini about 5,000 light-years away. This is narrowband S/H/O data combined in a way that tries to approximate "real" color. There is quite a bit of S2 in this object, so don't skip that filter if you're imaging this yourself. To process, I created a "super-luminance" image combining subs from all filters since there was so much useful data in S2 as well as Ha.

Been having a lot of trouble with my guide camera lately, so the resolution isn't as good as I would like. But it's still a pretty image.

I had to crop almost half of the image due to the glare from a very bright star just "below" the jellyfish. Hope to revisit this next season with some learnings under my belt.



Frank Kane
License: None (All rights reserved)

Sky plot

Sky plot


Jellyfish Nebula (IC 443), 


            Frank Kane