Tele Vue’s 2021 Solar Gallery

Active Region 12866 (left) and 12868 (right) by flickr user Carlo Casoli. All rights reserved. Used by permission. This hydrogen-alpha solar chromosphere image was taken at 2021 09 07, 10h 32’00” CET. Imaged with filtered Tecnosky 80/480 APO (DayStar Quark Chromosphere Model H-Alpha Filter with 4.2X telecentric Barlow) using Tele Vue 2x Barlow (effective focal length = 4000 mm) with ZWO Electronic Filter Wheel and ZWO ASI174MM camera. All carried on Ioptron CEM70G & Ioptron TriPier. Software: FireCapture, AutoStakkert3, and Photoshop. From Casalecchio di Reno, Italy.

It’s time to revisit the Sun! This nearby yellow-dwarf star is entering middle-age and is showing some spots! Here we have a  selection of solar images, taken from around the world, made with Tele Vue Barlows and Powermate image amplifiers.

3 Big Flares in Active Region 12860 (movie) by flickr user Carlo Casoli. All rights reserved. Used by permission. “I was very lucky to film a series of flares lasting about 2 minutes. The energy released in this very short time is incredible; the largest of the flares has an extension equal to at least 3-4 times the Earth’s diameter”. For this Hydrogen-alpha animation, 10-second exposures were taken every 30 seconds for a total of 1 hour from 2021 08 29 11h 30′ – 12h 30′ CET. Imaged with filtered Tecnosky 80/480 APO (DayStar Quark Chromosphere Model H-Alpha Filter) using Tele Vue 2x Barlow (effective focal length = 4000 mm) with ZWO Electronic Filter Wheel and ZWO ASI174MM camera. All carried on Ioptron CEM70G & Ioptron TriPier. Software: FireCapture, AutoStakkert3, ImPPG, and Photoshop. From Casalecchio di Reno, Italy.

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