group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
20 | 40 | 20 | 40 | 7.98 | 80.70 | -61.66 | 84.57 | 0.8772 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
1 | 2 | 1 | 1 | 9.04 | 84.30 | -58.06 | 83.54 | 0.8455 | |
0 | 1 | 0 | 1 | 9.16 | 81.83 | -60.52 | 83.28 | 0.8674 | |
1 | 19 | 1 | 19 | 8.01 | 81.64 | -60.71 | 84.60 | 0.8695 | |
5 | -3 | 5 | -3 | 7.74 | 81.45 | -60.90 | 84.89 | 0.8712 | |
3 | -3 | 3 | -3 | 7.44 | 81.46 | -60.89 | 85.24 | 0.8713 | |
8 | 15 | 8 | 15 | 8.25 | 80.42 | -61.94 | 84.24 | 0.8797 | |
1 | -6 | 1 | -6 | 8.30 | 80.07 | -62.28 | 84.16 | 0.8825 | |
0 | 1 | 0 | 1 | 7.35 | 77.99 | -64.37 | 85.09 | 0.8993 | |
1 | 1 | 1 | 2 | 7.43 | 77.02 | -65.34 | 84.92 | 0.9065 | |
0 | 1 | 0 | 1 | 9.23 | 75.97 | -66.38 | 82.88 | 0.9131 |
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 |