3152 3150
3153
Beta-Gamma
3154
Beta
3155
Beta
3156
Beta
3157
Alpha
6
6
  • Area = 1
  • Zurich = B
  • Penumbra = no penumbra (Zurich class A or B)
  • Leading = 1
  • NN = 2
7
7
  • Area = 4
  • Zurich = D
  • Penumbra = small symmetric (s) north to south diameter < 2.5
  • Leading = 5
  • NN = 4
8
8
  • Area = 37
  • Zurich = E
  • Penumbra = large symmetric (h) north to south diameter > 2.5
  • Leading = 4
  • NN = 10
9
9
  • Area = 4
  • Zurich = D
  • Penumbra = small symmetric (s) north to south diameter < 2.5
  • Leading = 5
  • NN = 7
10
10
  • Area = 1
  • Zurich = A
  • Penumbra = no penumbra (Zurich class A or B)
  • Leading =
  • NN = 1
11
11
  • Area = 5
  • Zurich = H
  • Penumbra = small symmetric (s) north to south diameter < 2.5
  • Leading =
  • NN = 1

Catania sunspot groups
2022-12-02 08:00:00
NOAA AR/sunspot
NOAA Halpha plage
NOAA expected region
2022-12-04 00:30:00
PROBA2/SWAP 17.4nm
2022-12-04T11:54:13.381