group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
13 | 63 | 7 | 32 | -13.83 | 125.42 | 14.67 | 218.95 | 0.3934 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
13 | 28 | 7 | 15 | -12.83 | 128.26 | 17.51 | 225.97 | 0.4098 | |
0 | 3 | 0 | 1 | -12.73 | 127.25 | 16.51 | 224.48 | 0.3973 | |
0 | 3 | 0 | 2 | -13.93 | 124.00 | 13.25 | 216.28 | 0.3777 | |
0 | 4 | 0 | 2 | -13.83 | 123.34 | 12.59 | 215.05 | 0.3703 | |
0 | 6 | 0 | 3 | -14.60 | 122.89 | 12.15 | 212.91 | 0.3764 | |
0 | 10 | 0 | 5 | -15.61 | 122.42 | 11.67 | 210.45 | 0.3862 | |
0 | 3 | 0 | 1 | -15.12 | 122.27 | 11.52 | 210.81 | 0.3782 | |
0 | 6 | 0 | 3 | -14.99 | 121.53 | 10.78 | 209.35 | 0.3703 |
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 |