group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
10 | 28 | 7 | 18 | -2.62 | 261.71 | 41.07 | 273.02 | 0.6593 | -820.1 | -197.6 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
10 | 17 | 7 | 11 | -2.86 | 263.30 | 42.66 | 272.38 | 0.6798 | -944.9 | -640.0 | |
0 | 3 | 0 | 2 | -2.30 | 259.51 | 38.87 | 273.87 | 0.6308 | 370.0 | 205.6 | |
0 | 5 | 0 | 3 | -2.64 | 259.17 | 38.53 | 273.40 | 0.6257 | 879.0 | 664.9 | |
0 | 3 | 0 | 2 | -1.56 | 258.99 | 38.35 | 275.16 | 0.6251 | 658.0 | 538.8 |
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. |