group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
12 | 39 | 8 | 24 | -11.89 | 151.96 | 34.03 | 251.03 | 0.5808 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
0 | 4 | 0 | 3 | -13.74 | 154.33 | 36.40 | 249.15 | 0.6192 | |
9 | 26 | 6 | 16 | -11.57 | 152.83 | 34.90 | 251.98 | 0.5917 | |
0 | 2 | 0 | 1 | -11.06 | 151.98 | 34.05 | 252.49 | 0.5784 | |
3 | 7 | 2 | 4 | -11.97 | 146.69 | 28.76 | 248.25 | 0.5088 |
Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
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Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
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Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
B | - Heliographic latitude B; positive: North, negative: South | |
L | - Heliographic longitude L | |
LCM | - Longitudinal distance from the Sun's central meridian | |
Pos. angle | - Position angle | |
r | - Distance from the centre of Sun's disc in terms of Sun's radius |