group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
47 | 132 | 24 | 65 | -1.98 | 259.74 | -2.22 | 26.20 | 0.0880 | -179.6 | 8.5 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
26 | 60 | 13 | 30 | -1.68 | 261.15 | -0.81 | 9.98 | 0.0820 | -1482.5 | -720.3 | |
0 | 9 | 0 | 4 | -2.02 | 260.06 | -1.90 | 24.05 | 0.0817 | -711.0 | -394.3 | |
3 | 63 | 2 | 31 | -2.02 | 258.62 | -3.34 | 38.11 | 0.0948 | 1340.2 | 765.7 | |
18 | -3 | 9 | -3 | -2.33 | 258.27 | -3.69 | 43.07 | 0.0947 | 1376.5 | 999999 |
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. |