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 polarity of AR2778 identifies it as a member of new Solar Cycle 25. It is, so far, the largest sunspot of the young solar cycle by a wide margin. AR2788 has a “beta-gamma” magnetic field that harbors energy for M-class solar flares. If any such eruptions occur today, they will be geoeffective as the sunspot is almost directly facing Earth. Stay tuned! Solar flare alerts: SMS Text.