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David Callejas

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January 20, 2019

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David Hoskin
Halifax, Nova Scotia, Canada

08/28/2021
11:00 am

Equipment Details:

Lunt 40 Solar Scope, ASI290MM camera, EQ6R mount

Post-processing Details:

Best 750 frames stacked with AutoStakkert3, Registax 6 for wavelets, Photoshop and Microsoft Photo for other post-processing.

Image Details:

Sunspot groups AR2859 (upper part of disk) and AR2860 (lower part of disk) are prominent in this hydrogen alpha image of our Sun. AR2860 has already unleashed a large solar flare. Plages, filaments and prominences are also present in this image.

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!