group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
28 | 167 | 16 | 97 | -5.45 | 307.75 | -31.10 | 104.72 | 0.5337 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
0 | 4 | 0 | 2 | -3.32 | 309.80 | -29.05 | 101.56 | 0.4968 | |
4 | 12 | 2 | 7 | -5.37 | 308.68 | -30.16 | 105.01 | 0.5200 | |
0 | 4 | 0 | 2 | -5.10 | 308.29 | -30.55 | 104.34 | 0.5247 | |
17 | 147 | 10 | 86 | -5.39 | 307.69 | -31.16 | 104.60 | 0.5344 | |
3 | -4 | 2 | -4 | -5.78 | 307.58 | -31.27 | 105.26 | 0.5374 | |
4 | -4 | 2 | -4 | -5.83 | 307.30 | -31.55 | 105.21 | 0.5415 |
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 |