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David Callejas

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January 20, 2019

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Jeremy Likness
Monroe, WA, USA

08/04/2023
02:00 am

Photographer's Website

Equipment Details:

Svbony sv503 70ED 336mm f/5 doublet refracator
ZWO ASI294MC Pro cooled camera
UV/IR cut filter, Optolong L-Pro light pollution filter, and Optolong L-eXtreme narrowband filter

Post-processing Details:

PixInsight

Image Details:

M31: The Andromeda Galaxy. 5 nights of dedicated imaging for 15 hours of RGB (combination of 45-second, 1-minute and 3-minute exposures) and 5 hours of narrowband (Optolong l-eXtreme). Honestly, I processed this about four or five times before getting to a result I was satisfied with... future revisions may come!

Posted

January 20, 2019

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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!