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)
Powered byPixInsight

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

Astrometry.net 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