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David Callejas

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January 20, 2019

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David Hoskin
Halifax, Nova Scotia, Canada

05/21/2022
10:30 am

Equipment Details:

Lunt 40mm solar telescope, ZWO ASI290MM camera with 2.5x Barlow, SkyWatcher EQ6R mount.

Post-processing Details:

AutoStakkert (stacking), IMPPG (sharpening), Photoshop (levels, contrast and false color) and PhotoScape X (final tweaking).

Image Details:

Large sunspot complex AR3014 (centre) imaged this morning in hydrogen alpha. According to SpaceWeather.com, this is one of the biggest sunspots in years, stretching more than 125,000 km from end to end. AR3017 and AR3015 are below and to the left and right of AR3014.

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!