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David Callejas

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January 20, 2019

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David Hoskin
Halifax, Nova Scotia, Canada

02/26/2022
09:30 pm

Equipment Details:

William Optics RedCat51 astrograph, ZWO ASI183MC camera with Optolong L-Pro filter, SkyWatcher EQ6R Pro mount.

Post-processing Details:

25 4-minute lights plus calibration frames were stacked using ImagesPlus; other post-processing was with Photoshop CS2 plus Astronomy Tools plugin, SiriL, PhotoScape X and MS Photo.

Image Details:

The Double Cluster consists of 2 open star clusters (NGC 869 and NGC 884) that are located close to each other in the constellation Perseus. Both open clusters are over 7,000 light years from Earth and are believed to have originated from the same star-forming region. The Double Cluster is visible with the unaided eye under dark skies but is best seen and absolutely beautiful when viewed through binoculars or a wide-field telescope.

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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!