IC443 "Jellyfish" (John Massey)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 10 Gem · 11 Gem · 12 Gem · 13 mu. Gem · 7 eta 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 "Jellyfish"

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IC443 "Jellyfish"

I’m closing 2019 with this bicolor image of the Jellyfish. Well, not necessarily a bicolor image more like a bifilter image. I normally assign Ha to R, 0.2*Ha+0.8*OIII to G and OIII to B for a natural looking bicolor but it seemed a bit flat to me. So I experimented using the Ha in the B channel, 0.2*Ha+0.8*OIII for the R and G channels. This resulted in a bluer image that I adjusted the hues on. I then combined the two images in PI’s pixelmath process using a 1.2 multiplier for the blue image. Further tweaking gave the result presented here. Hope you like it!

Original
B
Final
C

B

Description: Reprocessed adding luminance

Uploaded: ...

C

Description: Reduced noise

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	3785550
PixInsight job	V2Q0LF1XIB59KWBYNHR8LU0IPFPQ4U9G
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h19m18s.89
RA (top/left)	06h13m50s.33
RA (top/right)	06h25m26s.21
RA (bottom/right)	06h24m52s.96
RA (bottom/left)	06h13m07s.31

Dec (center)	+22°43′44″.8
Dec (top/left)	+21°37′11″.4
Dec (top/right)	+21°48′48″.9
Dec (bottom/right)	+23°49′34″.3
Dec (bottom/left)	+23°37′44″.1

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IC443 "Jellyfish"

IC443 "Jellyfish"

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IC443 "Jellyfish"

IC443 "Jellyfish"

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