IC443 The Jellyfish and Environs - SHO (Michael Feigenbaum)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 10 Gem · 11 Gem · 12 Gem · 13 mu. Gem · 7 eta Gem · 8 Gem · 9 Gem · Gem A · IC 443 · IC 444 · Part of the constellation Gemini (Gem) · Sh2-248 · Sh2-249 · Tejat Posterior · Tejat Prior · The star Propus (ηGem) · The star μGem

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IC443 The Jellyfish and Environs - SHO

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IC443 The Jellyfish and Environs - SHO

Here we have an SHO version of IC443, The Jellyfish Nebula. This SNR located in Gemini is the result of a supernova that occurred anywhere from 3,000 to 30,000 years ago and lies about 5,000 light years away.

I did an Ha rendition of this several weeks ago and decided afterward to acquire and add Oiii and Sii integration to it and see what I could accomplish. I did quite a bit of reading about narrowband processing and tried to incorporate some of the concepts I studied into this. The next time I do a straight NB image, I will try to employ the JP Metzavainio tone mapping strategy but this one was sort of straight on NB combinations in Pixelmath.

I'm fairly pleased with the result and the thing I wanted to accomplish was to try to learn to increase the brightness a little bit without making the image look cartoonish. The subtleties of color and contrast seem to be very difficult for me but I think perhaps, this is an improvement over previous images.

Anyway, I hope you like this one and as always. comments/criticism always welcome!

CS and good health...

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Description: Cropped Starless PI processing

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Status	Advanced success
Started	...
Astrometry.net job	4100241
PixInsight job	UJJZS5NTZ517IXRGIRUTHV3ZOSGZ0YBX
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h20m14s.38
RA (top/left)	06h27m17s.58
RA (top/right)	06h13m30s.40
RA (bottom/right)	06h13m18s.22
RA (bottom/left)	06h26m51s.52

Dec (center)	+23°03′04″.7
Dec (top/left)	+24°07′41″.4
Dec (top/right)	+24°13′58″.6
Dec (bottom/right)	+21°57′20″.1
Dec (bottom/left)	+21°51′17″.8

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IC443 The Jellyfish and Environs - SHO

IC443 The Jellyfish and Environs - SHO

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