group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
21 | 118 | 11 | 64 | -5.89 | 307.16 | -18.49 | 114.67 | 0.3489 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
0 | 3 | 0 | 2 | -6.90 | 308.79 | -16.86 | 119.51 | 0.3324 | |
0 | 4 | 0 | 2 | -5.27 | 308.28 | -17.38 | 114.37 | 0.3280 | |
16 | 100 | 8 | 53 | -5.36 | 307.62 | -18.03 | 113.83 | 0.3384 | |
3 | -3 | 2 | -3 | -5.71 | 307.28 | -18.37 | 114.39 | 0.3459 | |
2 | -3 | 1 | -3 | -5.83 | 306.99 | -18.66 | 114.37 | 0.3510 | |
0 | 3 | 0 | 2 | -8.54 | 306.38 | -19.27 | 120.29 | 0.3796 | |
0 | 5 | 0 | 3 | -10.65 | 304.92 | -20.74 | 123.04 | 0.4169 | |
0 | 3 | 0 | 2 | -6.90 | 299.64 | -26.02 | 110.22 | 0.4660 |
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 |