group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
30 | 208 | 93 | 626 | 26.07 | 101.79 | 77.74 | 297.16 | 0.9863 | -7.0 | 95.3 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
29 | 187 | 91 | 594 | 25.99 | 102.42 | 78.37 | 296.97 | 0.9885 | -4.6 | 105.2 | |
1 | 11 | 2 | 16 | 25.97 | 90.50 | 66.45 | 299.05 | 0.9443 | -70.9 | 11.1 | |
0 | 1 | 0 | 2 | 26.39 | 89.24 | 65.19 | 299.78 | 0.9384 | -397.0 | -397.0 | |
0 | 9 | 0 | 14 | 29.35 | 89.79 | 65.75 | 302.69 | 0.9457 | -77.0 | -160.1 |
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. |