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David Callejas

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January 20, 2019

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Jeffrey Horne
Nashville, TN USA

07/05/2022
01:00 am

Photographer's Website

Equipment Details:

Imaging Telescope: OPT Telescopes TPO UltraWide 180
Imaging Cameras: ZWO ASI2600MC Pro
Mount: Sky-Watcher EQ6-R Pro
Filters:
Astronomik L-3 Luminance UV/IR Block
Optolong Astronomy Filter L-eXtreme 2"
Accessories: ZWO ASIair +
Guiding Telescope: ZWO 30mm Mini Guider Scope
Guiding Camera: ZWO ASI290MM Mini

Post-processing Details:

Calibrated, registered, integrated, and HOO combination in Astro Pixel Processor. Color calibration, stretching, noise reduction, star removal in Pixinsight. Star recombination and final edits in Photoshop (levels, color, sharpening.)

Image Details:

73.5 hours, taken over the course of 19 nights from Nashville, TN (Bortle 8). This image is a wide swath of nebulosity in the center of the constellation Cygnus, including the Crescent Nebula, the Tulip Nebula, Wolf-Rayet 134, Cygnus X-1 Black Hole, and much more. I hope you enjoy this image as much as I enjoyed taking it!

Astronomik L-3 Luminance UV/IR Block: 200x5" (16' 40") (gain: 100.00) -10°C Bin 1x1
Optolong L-eXtreme 2": 550x480" (73h 20') (gain: 100.00) -10°C Bin 1x1
Integration: 73h 36' 40"
Darks: 60
Flats: 100
Flat darks: 100
Bortle Dark-Sky Scale: 8.00

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!