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David Callejas

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January 20, 2019

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Jeremy Likness
Newport, OR, USA

02/03/2024
10:30 pm

Photographer's Website

Equipment Details:

Celestron EdgeHD 9.25" with HyperStar
ASI294MC Pro
Optolong L-eXtreme filter
ZWO AM5 mount

Post-processing Details:

PixInsight

Image Details:

Lo and behold, the Pacific Northwest had a clear night during the rain season! It was glorious, so I tried out my new set up with a HyperStar. This effectively reduces the focal length of my telescope from its native 2350mm to 510mm and transforms it from an f/10 to an f/2. Theoretically, it should image 25x faster than without the HyperStar. To put it to the test I captured 56 minutes of 30-second and 60-second exposures. I was very happy with the result. This is M42, M43, and NGC1977: the Great Orion Nebula, DeMairan's Nebula, and the Running Man Nebula.

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!