group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
50.45 | 304.76 | 26.39 | 159.40 | -6.83 | 139.38 | 12.74 | 222.93 | 0.3229 | 1270.2 | 421.2 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 0.90 | 0.00 | 0.48 | -8.13 | 143.76 | 17.12 | 228.82 | 0.3889 | 786.0 | 729.0 | |
0.00 | 0.99 | 0.00 | 0.52 | -9.06 | 139.51 | 12.87 | 218.88 | 0.3520 | 789.0 | 609.8 | |
50.45 | 298.91 | 26.39 | 156.33 | -6.80 | 139.41 | 12.77 | 223.08 | 0.3228 | 1477.7 | 430.0 | |
0.00 | 1.26 | 0.00 | 0.66 | -7.73 | 136.78 | 10.14 | 214.74 | 0.3075 | 896.0 | 656.9 | |
0.00 | 0.99 | 0.00 | 0.51 | -5.89 | 135.32 | 8.68 | 214.21 | 0.2683 | -893.0 | -731.5 | |
0.00 | 1.71 | 0.00 | 0.90 | -10.25 | 135.13 | 8.49 | 206.27 | 0.3298 | -703.0 | -652.5 |
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 | |
MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. |