group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
24 | 110 | 24 | 120 | -7.33 | 144.42 | 61.95 | 259.85 | 0.8886 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
13 | 62 | 15 | 76 | -7.86 | 147.67 | 65.20 | 259.76 | 0.9156 | |
0 | 2 | 0 | 2 | -6.33 | 140.01 | 57.54 | 260.29 | 0.8530 | |
4 | 46 | 3 | 42 | -6.48 | 139.17 | 56.70 | 259.97 | 0.8455 | |
7 | -3 | 6 | -3 | -6.37 | 138.52 | 56.05 | 259.99 | 0.8393 |
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 |