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David Callejas

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January 20, 2019

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Grace Wheeler
Eureka, CA USA

01/19/2023
04:05 pm

Photographer's Website

Equipment Details:

Lunt 80tha double-stacked solar telescope on an Celestron Evolution mount. The sun was imaged with a ZWO 294 monochrome planetary camera.

Post-processing Details:

About 1500 frames were stacked in Autostakkert and sharpened/inverted in IMPPG. Final tone adjusted was done in Photoshop.

Image Details:

After two weeks of constant rainfall in northern California, we finally got a sunny day. I have been watching the sun on NISP ( https://nso.edu/telescopes/nisp/) and knew that there was quite a bit of solar activity, including AR 3190. Despite some breezy conditions and partly cloudy conditions, I manged to do two hours of decent imaging of the sun.
We are into the third year of Solar Cycle 25 and so far it has not disappointed.

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!