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Hemisphere:  Northern  ·  Contains:  IC 443, The star Propus (ηGem)
Getting plate-solving status, please wait...
IC 443 Supernova Remnant (Jellyfish Nebula), 


            Mike Oates
IC 443 Supernova Remnant (Jellyfish Nebula)
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IC 443 Supernova Remnant (Jellyfish Nebula)

Technical card

Imaging telescopes or lenses: Takahashi FSQ-106 ED

Imaging cameras: Starlight Xpress SX-814 Trius Monochrome CCD

Mounts: Sky-Watcher EZ-EQ6 GT

Guiding cameras: Starlight-XPress Lodestar Autoguider

Software: Sequence Generator Pro  ·  Photoshop CS6  ·  PIXINSIGHT 1.8

Filters: Ha 3nm  ·  Red  ·  Green  ·  Blue

Accessory: Lakeside Astro Motor Focus System  ·  Starlight Xpress SX 'Maxi wheel'  ·  Starlight Instruments FTF3545B-A Focuser

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

Basic astrometry details job: 1895541

RA center: 6h 16' 39"

DEC center: +22° 30' 3"

Pixel scale: 1.967 arcsec/pixel

Orientation: 0.019 degrees

Field radius: 0.835 degrees

Resolution: 2278x2040

Locations: The Hills Observatory, Manchester, United Kingdom

Data source: Backyard


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