group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
16 | 46 | 7 | 26 | 19.72 | 255.60 | 15.42 | 313.42 | 0.3461 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
1 | 9 | 0 | 5 | 18.14 | 259.25 | 19.07 | 304.01 | 0.3762 | |
3 | -1 | 2 | -1 | 18.41 | 259.29 | 19.11 | 304.59 | 0.3789 | |
0 | 2 | 0 | 1 | 18.48 | 258.97 | 18.80 | 305.15 | 0.3753 | |
0 | 2 | 0 | 1 | 18.57 | 258.49 | 18.32 | 306.00 | 0.3698 | |
0 | 1 | 0 | 1 | 18.62 | 257.98 | 17.80 | 306.83 | 0.3636 | |
0 | 0 | 0 | 0 | 20.85 | 254.89 | 14.72 | 316.83 | 0.3486 | |
0 | 1 | 0 | 1 | 20.63 | 254.75 | 14.57 | 316.64 | 0.3445 | |
0 | 0 | 0 | 0 | 21.44 | 254.86 | 14.71 | 318.07 | 0.3553 | |
2 | 13 | 1 | 7 | 19.67 | 254.13 | 13.95 | 315.73 | 0.3266 | |
1 | 18 | 0 | 10 | 20.39 | 254.35 | 14.18 | 316.87 | 0.3373 | |
2 | -9 | 1 | -9 | 19.92 | 254.02 | 13.84 | 316.51 | 0.3283 | |
3 | -10 | 1 | -10 | 20.43 | 254.18 | 14.00 | 317.31 | 0.3358 | |
4 | -10 | 2 | -10 | 20.62 | 253.97 | 13.79 | 318.11 | 0.3357 |
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 |