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Contains:  IC 444, IC 443, The star μGem, The star Propus (ηGem), Part of the constellation Gemini (Gem)
Getting plate-solving status, please wait...
IC 443 The Jellyfish Nebula and S249, 


            Wes Chilton
IC 443 The Jellyfish Nebula and S249

IC 443 The Jellyfish Nebula and S249

Technical card

Resolution: 6338x3213

Dates:Feb. 16, 2016

Frames:Astrodon Hydrogen Alpha 5nm 31mm: 44x1800" (gain: 4.45) -20C bin 1x1

Integration: 22.0 hours

Darks: ~50

Flats: ~20

Flat darks: ~20

Bias: ~512

Avg. Moon age: 8.62 days

Avg. Moon phase: 62.98%

Bortle Dark-Sky Scale: 8.00

Mean SQM: 18.31

Mean FWHM: 2.50

Temperature: 15.00 job: 1295403

RA center: 94.800 degrees

DEC center: 22.903 degrees

Pixel scale: 1.758 arcsec/pixel

Orientation: -179.576 degrees

Field radius: 1.735 degrees

Locations: Home Observatory, La Crescenta, California, United States

Data source: Backyard


This is a 3 panel Ha mosaic taken over many nights... still a work in progress.



Wes Chilton
License: None (All rights reserved)

Sky plot

Sky plot


IC 443 The Jellyfish Nebula and S249, 


            Wes Chilton

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