EarthSky Community Photos

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Ron Haggett
Yuma. AZ
09:20 pm

Equipment Details:

Camera - ZWO ASI 183MC-Pro cooled to -10ºC
William Optics Z61, f/5.9, with 1:1 field flattener
iOptron CEM mount and tripod
N.I.N.A. for image capture

Post-processing Details:

25 x 60-second subs
Calibration frames
Affinity Photo 2 for stacking and adjustments (M1 Mac, Ventura OS 13.1)
Topaz Denoise AI

Image Details:

IC 443, or the Jellyfish Nebula, is thought to be a supernova remnant (SNR) and is located in the constellation Gemini. It is part of a larger H II region, S249, several young stars, and another older SNR. The nebula's size spans an area of about 50 arcminutes, nearly twice the size of the full moon (about 30 arcminutes).