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David Callejas

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January 20, 2019

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David Hoskin
Halifax, Nova Scotia, Canada

11/01/2021
08:10 pm

Equipment Details:

WO RedCat51 Astrograph/ZWO ASI183MC camera/SkyWatcher EQ6R mount

Post-processing Details:

40 4-minute subs plus calibration frames stacked with Images Plus; post-processing with SiriL, Photoshop, Images Plus, and Microsoft Photo. I left the final image in grayscale since detail was better than in the color version.

Image Details:

Andromeda Galaxy (M31) and companion galaxies (M32 and M110) in grayscale, imaged from Halifax on 1 November 2021. M31, located about 2.5 million light years from Earth, is similar in form to our Milky Way Galaxy but it is twice as large. M31 is predicted to collide with our Milky Way Galaxy...in about 4.5 billion years!

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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!