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David Callejas

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January 20, 2019

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Jeffrey Horne
Nashville, TN, USA

11/09/2021
01:00 am

Photographer's Website

Equipment Details:

Imaging telescope: TPO Ultrawide 180

Imaging camera: ZWO ASI2600MC Pro

Mount: Sky-Watcher EQ6R-PRO

Guiding telescope: ZWO Mini Guide Scope

Guiding camera: ZWO ASI290MM Mini

Software: Pleiades Astrophoto PixInisight, Aries Productions Astro Pixel Processor, ZWO ASIAir Pro, Photoshop CC

Filters: Optolong L-Pro 2'', Optolong L-eXtreme 2"

Accessory: ZWO AsiAir Pro

Post-processing Details:

Calibrated and stacked in Astro Pixel Processor. Stretching, noise reduction, and star removal in Pixinsight. Star recombination and final touches in Photoshop.

Image Details:

The Cosmic Question Mark, taken from our backyard in Nashville, TN over the course of 7 nights. A total of 50 hours of exposure time.⁣
⁣
A reminder to always stay curious. :)⁣

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!