BIG SUNSPOT ALERT:
Watch this movie. A big new sunspot group is emerging over the sun’s northeastern limb. It is crackling with C-class solar flares and could soon pose a threat for stronger M-flares. With a primary dark core twice as large as Earth, the sunspot is an easy target for backyard solar telescopes. We recommend the projection method.
Ydun Ritz (2022-03-25)