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David Callejas

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January 20, 2019

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Steven Bellavia
Mattituck, NY

01/27/2024
10:10 pm

Photographer's Website

Equipment Details:

William Optics GT-71 Triplet refractor
Canon 200mm lens
ZWO ASI 294MM camera
SkyWatcher EQ6R-Pro camera

Post-processing Details:

2 years of data on M31, put together, for a total of 57 hours. Over 48 hours is Ha-OIII, data, of which 38 hours is OIII, from capturing StDrSA-01 in November 2023

Image Details:

With all the bad weather lately, I decided to take my last 2 years of data on M31, the Andromeda Galaxy, and put it all together, for a total of 57 hours. Over 48 hours is Ha-OIII, data, of which 38 hours is OIII, from capturing StDrSA-01 in November 2023
The star-forming regions appear as small red "knots" in and beyond the spiral arms, and the collections of young, hot blue stars appear as blue regions, including NGC 206, which is a star cluster within the galaxy.
The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way and is approximately 2.5 million light-years from Earth.

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!