SPRAWLING SUNSPOT, CHANCE OF FLARES: Sunspot AR1897 has evolved into a sprawling archipelago of magnetic islands with more than a dozen dark cores scattered across 350,000 km of solar "terrain." This complex region has a 'beta-gamma-delta' magnetic field that harbors energy for X-class solar flares, and it is directly facing Earth:
Any eruptions from AR1897 this weekend would likely be geoeffective. NOAA forecasters estimate a 60% chance of M-class solar flares and a 15% chance of X-flares on Nov. 16th. Solar flare alerts: text, voice
 |
Solar wind
speed: 539.8 km/sec
density: 2.3 protons/cm3
explanation | more data
Updated: Today at 1917 UT
|
X-ray Solar Flares
6-hr max: C3 1712 UT Nov16
24-hr: M1 0749 UT Nov16
explanation | more data
Updated: Today at: 1900 UT
|
|
Daily Sun: 16 Nov 13
|
|
Sprawling sunspot AR1897 has a 'beta-gamma-delta' magnetic field that harbors energy for X-class solar flares. . Credit: SDO/HMI
