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Contains:  IC 443
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IC-443 (Jellyfish Nebula; Sharpless 248) in Ha, 



    
        

            Joel Shepherd
IC-443 (Jellyfish Nebula; Sharpless 248) in Ha
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IC-443 (Jellyfish Nebula; Sharpless 248) in Ha

Technical card


Dates:Nov. 26, 2015

Frames: 22x300"

Integration: 1.8 hours

Avg. Moon age: 15.39 days

Avg. Moon phase: 99.56%


Basic astrometry details

Astrometry.net job: 883594

RA center: 6h 17' 33"

DEC center: +22° 40' 37"

Pixel scale: 2.049 arcsec/pixel

Orientation: 128.930 degrees

Field radius: 0.586 degrees


Resolution: 1600x1298

Locations: Home, Seattle, WA, United States

Description

A little noisy and the framing isn't optimal either: might do a little rework on it. We've had very few decent nights in the last 10 weeks or so; this night was passable but transparency was not great.

In any event, IC-443 is believed to be a supernova remnant about 5000 light-years from earth and roughly 70 light-years across.

Comments

Author

JoelShepherd
Joel Shepherd
License: Attribution Creative Commons
1140
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Revisions

  • IC-443 (Jellyfish Nebula; Sharpless 248) in Ha, 



    
        

            Joel Shepherd
    Original
  • Final
    IC-443 (Jellyfish Nebula; Sharpless 248) in Ha, 



    
        

            Joel Shepherd
    B

Sky plot

Sky plot

Histogram

IC-443 (Jellyfish Nebula; Sharpless 248) in Ha, 



    
        

            Joel Shepherd