EarthSky Community Photos
Updates on Your Cosmos and World
Its bitsy 66mm Vixen refractor at prime focus, Vixen Alt-AZ mount Cannon 60d camera
New Massive sunspot AR 2781 as seen to me just now as it rotates across the face of the Sun.
A new sunspot group is rotating into view over the sun's southeastern limb--and it's a big one. At least three dark cores the size of Earth. The +/- polarity of the sunspot group marks it as a member of Solar Cycle 25. This comes as no surprise. Almost every sunspot this year has belonged to the new solar cycle. Solar Cycle 25 is taking a firm hold on the sun.
Earlier today (Nov. 3rd at 0703 UT) the sunspot produced a minor C1-class solar flare. A pulse of UV radiation from the flare briefly ionized Earth's upper atmosphere, causing a low-frequency radio blackout over the Indian Ocean: map. Mariners and ham radio operators in the area may have noticed unusual propagation effects at frequencies below ~5 MHz. (Spaceweather.com). My photo