group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
37 | 275 | 20 | 146 | 16.55 | 49.37 | -19.22 | 58.89 | 0.3702 | 1753.4 | 658.5 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 3 | 0 | 2 | 17.34 | 51.55 | -17.05 | 54.07 | 0.3471 | -467.0 | -483.8 | |
37 | 247 | 20 | 131 | 16.32 | 49.65 | -18.94 | 59.13 | 0.3646 | 1818.9 | 673.7 | |
0 | 9 | 0 | 5 | 19.33 | 49.14 | -19.46 | 52.87 | 0.3960 | 860.0 | 781.8 | |
0 | 4 | 0 | 2 | 18.50 | 47.33 | -21.27 | 56.82 | 0.4127 | 418.0 | 532.6 | |
0 | 6 | 0 | 3 | 18.10 | 45.36 | -23.24 | 59.67 | 0.4363 | 842.0 | 733.2 | |
0 | 6 | 0 | 3 | 18.58 | 41.27 | -27.32 | 62.09 | 0.4943 | 568.0 | 559.0 |
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. |