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David Callejas

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January 20, 2019

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David Hoskin
Halifax, Nova Scotia, Canada

07/27/2022
04:00 am

Equipment Details:

WO RedCat51 refractor, ZWO ASI183MC camera with Optolong L-Pro filter, SkyWatcher EQ6R Pro mount.

Post-processing Details:

98 4-minute lights plus calibration frames were stacked using DeepSkyStacker; other post-processing was with Siril, Photoshop CS2 plus Astronomy Tools plugin, StarNet++ and PhotoScape X.

Image Details:

The Andromeda Galaxy (Messier 31), at 2.5 million light years from Earth, is the nearest large galaxy. It has a barred spiral structure and over 20 satellite dwarf galaxies that include Messier 32 (middle left) and Messier 101 (bottom right). In 4 to 5 billion years the Andromeda Galaxy is expected to collide with our Milky Way Galaxy!

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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!