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David Callejas

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January 20, 2019

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Jeremy Likness
Otter Rock, OR, USA

03/31/2024
09:30 pm

Photographer's Website

Equipment Details:

Celestron EdgeHD 9.25" with HyperStar
ZWO ASI294MC Pro cooled camera
ZWO AM5 harmonic equatorial mount

Post-processing Details:

Processed entirely in PixInsight

Image Details:

In the short window between dawn and dusk, "the Devil comet" (known for the crescent shape of its nucleus that in some images looks like horns) rapidly began to set while passing near the brilliant star, Hamal. With only a short window available, I used my HyperStar set up to image at 510mm and f/2. This gathers light about 25 times faster than my traditional setup. I did not use any filters, just my one-shot color camera. The result is this image I named, "The Devil's Diamond."

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!