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David Callejas

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January 20, 2019

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Jeremy Likness
Newport, OR, USA

11/24/2023
10:00 pm

Photographer's Website

Equipment Details:

Williams Optics Redcat 71 350mm f/5
AM5 Mount
ASI294MM Pro camera w/ 8x31mm filter wheel and R, G, and B filters
90-second exposures

Post-processing Details:

Stacked with AstroPixel Processor
Post-processed in PixInsight

Image Details:

The double cluster is the beautiful pair of NGC869 (h Persei) and NGC884 (χ (chi) Persei), containing over 300 blue-white super-giant s and a scattering of red super-giants. The cluster is also blue shifted as it inches its way 24 miles closer to earth every second. It is visible to the naked eye and lurks near the distinct "W" of Cassiopeia.

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!