group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
52 | 285 | 57 | 301 | -10.12 | 273.49 | -60.42 | 104.02 | 0.8826 | -183.4 | -52.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
28 | 179 | 27 | 172 | -9.30 | 276.38 | -57.53 | 103.71 | 0.8591 | -752.0 | -258.8 | |
0 | 5 | 0 | 5 | -11.04 | 274.74 | -59.17 | 105.31 | 0.8758 | -140.0 | -152.7 | |
0 | 2 | 0 | 2 | -10.13 | 271.90 | -62.00 | 103.70 | 0.8966 | 301.0 | 353.9 | |
5 | 16 | 6 | 19 | -10.49 | 270.66 | -63.25 | 103.86 | 0.9062 | 429.0 | 424.9 | |
0 | 4 | 0 | 5 | -12.25 | 269.48 | -64.43 | 105.53 | 0.9167 | 505.0 | 481.2 | |
19 | 79 | 24 | 98 | -11.32 | 269.15 | -64.76 | 104.46 | 0.9177 | 293.1 | 188.1 |
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. |