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David Callejas

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January 20, 2019

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David Hoskin
Halifax, Nova Scotia, Canada

02/15/2023
10:00 am

Equipment Details:

Lunt 40mm hydrogen alpha solar telescope, Player Apollo Mini-M camera, SkyWatcher Star Adventurer mount

Post-processing Details:

600 frames (best of 3000) of video were stacked with AutoStakkert, IMPPG was used for curves and sharpening, additional post-processing with PhotoShop and PhotoScape X. Image is inverted to show greater detail.

Image Details:

This hydrogen alpha image of the Sun that was captured today shows only a few small prominences. However, multiple sunspots (white due to the image being inverted to enhance detail) and filaments are visible. The largest of the sunspot groups (AR3226 in the upper left) was the site of a magnetic filament associated with a coronal mass ejection that is likely to hit the Earth.

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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!