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David Callejas

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January 20, 2019

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Randall Kayfes
Tucson, Arizona, USA

09/24/2022

Photographer's Website

Equipment Details:

Celestron 9.25 SCT OTA 2350mm F/6.3, ZWO ASI533 MC Pro - cooled to 0°C

Post-processing Details:

harpCap, Autostakkert evaluative stacking performed, Registax sharpening, DarkTable for contrast and color refinement.

Image Details:

Nice row of sunspots in white light. This photo compliments Mario Rana's Hydrogen-Alpha photo of the same date.

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!