AR2736 has developed rapidly, unusual, since we haven’t seen a decent sunspot for a while.
“Spaceweather” says:
“A few days ago, sunspot AR2736 didn’t exist. Now, the rapidly-growing active region stretches across more than 100,000 km of the solar surface and contains multiple dark cores larger than Earth. Moreover, it has a complicated magnetic field that is crackling with C-class solar flares.”
The images are fairly poor due to the extreme acute angle with the double glazing!
