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David Callejas

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January 20, 2019

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David Hoskin
Halifax, Nova Scotia, Canada

03/20/2023
11:38 am

Equipment Details:

Celestron 102mm f/10 refractor, APM Herschel wedge, Player One Apollo-M Mini camera, GSO 2.5x Barlow, SkyWatcher EQ6R mount.

Post-processing Details:

Best 1000 out of 4000 frames were stacked with AutoStakkert, wavelets adjusted with Registax, other post-processing and false color added with Photoshop.

Image Details:

This white light image, captured this morning, shows sunspot groups AR3259 (top left), AR3256 (to the right of AR3259), and AR3257 (bottom left). According to spaceweather.com, sunspot complex AR3256-57 poses a risk for medium-large solar flares (known as M class) that could trigger aurora.

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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!