group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
7 | 34 | 4 | 21 | -9.45 | 321.30 | 33.46 | 250.13 | 0.5804 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
7 | 22 | 4 | 14 | -9.56 | 322.15 | 34.31 | 250.39 | 0.5923 | |
0 | 3 | 0 | 2 | -10.84 | 321.17 | 33.33 | 247.80 | 0.5851 | |
0 | 3 | 0 | 2 | -8.69 | 320.00 | 32.16 | 250.74 | 0.5595 | |
0 | 4 | 0 | 2 | -8.42 | 318.42 | 30.58 | 250.34 | 0.5365 | |
0 | 2 | 0 | 1 | -8.80 | 318.05 | 30.21 | 249.44 | 0.5332 |
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 |