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Astronomy and Cosmology
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Solar Activity and Space Weather Update thread
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[QUOTE="Stavros Kiri, post: 5834130, member: 593167"] [ATTACH=full]210318[/ATTACH] This is interesting. They just became 5 groups visible (one gone [2672], but two new came [2676 and, just fresh, 2677]). 2674 is the biggest (kind of huge) and 2673 seems to have just started growing. Also time again for "eye tests". Group 2674 [U]is also visible with unaided eye[/U] (wearing solar [eclipse] glasses of course)! You just need to know where to look, and a good vision. I saw it clearly yesterday and today (Sept. 3). By tomorrow perhaps group 2673 will also be similarly visible. We'll see. But [B]CAUTION[/B]: [U]never look at the sun with naked eye, or not even with just sun glasses[/U] (even if the sun is behind clouds). Use solar [eclipse] glasses, or other appropriate filter, with your eyes, cameras, telescopes and other instruments ... [/QUOTE]
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