Contains: IC 444, IC 443, The star Propus (ηGem)
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The Jellyfish Nebula, IC 443, H-alpha

Technical card

Resolution: 3936x2589

Dates: Dec. 26, 2016

Frames: Astrodon H-alpha 3 nm: 30x900" bin 1x1

Integration: 7.5 hours

Avg. Moon age: 26.99 days

Avg. Moon phase: 7.14% job: 1389370

RA center: 94.170 degrees

DEC center: 22.527 degrees

Pixel scale: 3.136 arcsec/pixel

Orientation: -90.682 degrees

Field radius: 2.052 degrees

Locations: My Back Deck, Glen Ellyn, Illinois, United States


Most of the data used in this image came from the AP 130 GTX listed above. However, I must admin that a certain amount of detail at the core of the nebula was taken from a much earlier image generated with my Celestron 9.25 HD. The much narrower FOV and accompanying higher resolution did add definition to the lace-like structures, impossible to resolve in the wide-field image.



Eric Coles (coles44)

Sky plot

Sky plot


The Jellyfish Nebula, IC 443, H-alpha, 


        Eric Coles (coles44)

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Narrowband imaging