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David Callejas

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January 20, 2019

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Victor Rogus
Sedona, Arizona

01/07/2022
09:30 am

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Vixen VC 200L telescope Cannon 60d camera, Losmandy GM-8 mount, 1000 Oaks Solar filter

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As seen to me yesterday sunspot AR2924 has quadrupled in size during the past 48 hours and could soon pose a threat for Earth-directed solar flares. And NASA's STEREO-A spacecraft is monitoring two ultraviolet hotspots just behind the sun's eastern limb. These are potentially significant sunspot groups. The regions will rotate into view this weekend. (Spaceweather.com) My photo.

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January 20, 2019

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David Callejas

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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!