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David Callejas

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January 20, 2019

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Ron Haggett
Yuma. AZ

12/13/2022
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).

Posted

January 20, 2019

in

David Callejas

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About the Author:

David Callejas, Marketing Director, helps bring EarthSky's content to the world via online ads and other products. He creates strategies that help people around the world find us and appreciate the work we do. He helps manage the EarthSky Store and bring to you the new products that you love. He's the chief liaison between EarthSky.org and the world of commerce. All that, plus he helps post content and populate our pages on Facebook, Google+ and Twitter. Go David!