Contains:  IC 443, The star Propus (ηGem)
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IC 443 Supernova Remnant (Jellyfish Nebula), 


            Mike Oates
IC 443 Supernova Remnant (Jellyfish Nebula)

IC 443 Supernova Remnant (Jellyfish Nebula)

Technical card

Resolution: 2278x2040

Dates:Dec. 15, 2017

Blue: 20x15" bin 2x2
Green: 20x15" bin 2x2
Ha 3nm: 8x1800" bin 1x1
Red: 20x15" bin 2x2

Integration: 4.2 hours

Avg. Moon age: 27.04 days

Avg. Moon phase: 6.88%

Mean SQM: 18.50 job: 1895541

RA center: 94.165 degrees

DEC center: 22.501 degrees

Pixel scale: 1.967 arcsec/pixel

Orientation: 0.019 degrees

Field radius: 0.835 degrees

Locations: The Hills Observatory, Manchester, United Kingdom

Data source: Unknown


This is a work in progress, there are only 8 x 1800s subs (4hrs) and the RGB stars that are added to the tone mapped Ha image are 20 x 15s (bin2x2) for each R, G & B filter.

I only started to process this to see how far I could go with minimal subs. All due to learning how to use noise reduction better in PixInsight.

I aim to get OIII and SII data when the weather improves.



Mike Oates
License: None (All rights reserved)

Sky plot

Sky plot


IC 443 Supernova Remnant (Jellyfish Nebula), 


            Mike Oates