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Posted by

David Callejas

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January 20, 2019

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Patricio Leon
Santiago, Chile

01/31/2024
09:38 am

Equipment Details:

Newt 4.5" + solar film, 1/640s ISO100

Post-processing Details:

crop, B/C

Image Details:

close to 10 o'clock limb AR3567 shows complex dark cores; just rotating the 8 o'clock limb appears an isolated newcomer which exhibits at full resolution image a real Wilson effect (asimetry of penumbra due to apparent displacement of the umbra away from the limb)

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!