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David Callejas

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January 20, 2019

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David Hoskin
Halifax, Nova Scotia, Canada

01/11/2022
07:00 pm

Equipment Details:

William Optics RedCat51 astrograph, ZWO ASI183MC camera with UV/IR cut filter, SkyWatcher EQ6R Pro mount

Post-processing Details:

29 4-minute lights (guided) plus calibration frames were stacked using DeepSkyStacker; other post-processing with Photoshop CS2 plus Astronomy Tools plugin, and PhotoScape X. Diffraction spikes added during post-processing.

Image Details:

Last night I braved the sub-zero cold to spend some time imaging Kemble's Cascade, which is a line of colorful stars in Camelopardalis that ends in the compact open star cluster NGC 1502. Father Lucien Kemble, a Franciscan priest and member of the Royal Astronomical Society of Canada, was the discoverer of this asterism.

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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!