Tag Archives: Spaceweather

BIG SUNSPOT AR2778

By | October 28, 2020

BIG SUNSPOT AR2778:There’s a new spot on the sun–and it’s a big one. Only two days old, AR2778 is already 8 times wider than Earth with a dozen dark cores sprawling 100,000 km across the solar surface. It is inset in this magnetic map of the sun from NASA’s Solar Dynamics Observatory: The +/- magnetic… Read More »