group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
0 | 47 | 0 | 23 | -12.82 | 156.13 | -0.42 | 177.92 | 0.1977 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
0 | 4 | 0 | 2 | -12.41 | 159.76 | 3.21 | 196.30 | 0.1956 | |
0 | 10 | 0 | 5 | -12.74 | 158.38 | 1.83 | 189.22 | 0.1958 | |
0 | 12 | 0 | 6 | -13.18 | 156.20 | -0.35 | 178.28 | 0.2010 | |
0 | 10 | 0 | 5 | -12.98 | 154.58 | -1.97 | 170.31 | 0.2003 | |
0 | 7 | 0 | 3 | -12.42 | 154.06 | -2.50 | 167.18 | 0.1925 | |
0 | 4 | 0 | 2 | -12.54 | 153.65 | -2.90 | 165.34 | 0.1962 |
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 |