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David Callejas

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January 20, 2019

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Steven Bellavia
Southold, NY

01/02/2024
10:00 pm

Photographer's Website

Equipment Details:

TSO-115, f/7 triplet refractor
ZWO ASI 294MM camera
SkyWatcher EQ6R-Pro Equatorial mount
Antlia Edge 4.5nm H-alpha and OIII filters

Post-processing Details:

20 x 240 seconds for each filter

Image Details:

The Horsehead Nebula (Barnard 33) is a dark nebula in the constellation Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. The nebula was first recorded in 1888 by Scottish astronomer Williamina Fleming on a photographic plate taken at the Harvard College Observatory.

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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!