2656 2660
2659
Beta
27
27
  • Area = 13
  • Zurich = D
  • Penumbra = small symmetric (s) north to south diameter < 2.5
  • Leading = 4
  • NN = 13

Catania sunspot groups
2017-05-26 09:30:00
NOAA AR/sunspot
NOAA Halpha plage
NOAA expected region
2017-05-28 00:30:00
PROBA2/SWAP 17.4nm
2017-05-24T22:59:42.981