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David Callejas

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January 20, 2019

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David Hoskin
Halifax, Nova Scotia, Canada

02/27/2024
11:30 am

Equipment Details:

ZWO ASI290M camera, ES 2x focal extender, Lunt 40mm f10 solar telescope, SkyWatcher EQ6R mount

Post-processing Details:

AutoStakkert to stack best 500 out of 2000 frames , IMPPG for sharpening, additional post-processing with Photoshop and MS Photo, including the addition of false color.

Image Details:

This hydrogen-alpha filtered image shows giant sunspot group AR3590 as it approaches the NW limb of the Sun. AR3590 still has the potential to unleash X-class solar flares.

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!