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David Callejas

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January 20, 2019

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Patricio Leon
Santiago, Chile

01/07/2024
08:54 am

Equipment Details:

Newt 4.5" + solar film, 1/500s ISO100

Post-processing Details:

crop, B/C

Image Details:

Sun photosphere evolves fast, in one day the group AR3538 vanished, AR3536 acquired more black cores and, below it, a new unnamed sunspot group appeared from seemingly nowhere; AR3540, closer to the eastern limb. rotates steady and uneventful

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!