group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
37 | 287 | 20 | 157 | 16.63 | 49.44 | -22.93 | 62.49 | 0.4227 | 1711.7 | 651.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 5 | 0 | 3 | 17.44 | 51.50 | -20.87 | 58.66 | 0.3997 | -772.0 | -550.6 | |
37 | 247 | 20 | 134 | 16.29 | 49.68 | -22.69 | 63.03 | 0.4172 | 1772.3 | 658.9 | |
0 | 3 | 0 | 2 | 18.66 | 49.28 | -23.09 | 58.35 | 0.4384 | 819.0 | 777.8 | |
0 | 21 | 0 | 12 | 19.09 | 48.85 | -23.52 | 57.89 | 0.4471 | 1093.0 | 883.3 | |
0 | 5 | 0 | 3 | 18.41 | 47.17 | -25.20 | 60.75 | 0.4650 | 894.0 | 700.3 | |
0 | 6 | 0 | 3 | 18.27 | 41.48 | -30.89 | 64.90 | 0.5405 | 461.0 | 437.3 |
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. |