group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
52 | 218 | 29 | 120 | 21.92 | 249.48 | 20.91 | 312.18 | 0.4483 | -177.0 | -12.7 |
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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 | 21.19 | 254.13 | 25.56 | 305.60 | 0.4967 | 782.0 | 744.9 | |
8 | 20 | 4 | 11 | 20.71 | 253.67 | 25.10 | 305.18 | 0.4874 | 1014.7 | 680.1 | |
0 | 24 | 0 | 13 | 21.44 | 251.52 | 22.95 | 308.70 | 0.4669 | 989.0 | 638.6 | |
15 | 40 | 8 | 22 | 21.75 | 250.97 | 22.40 | 309.86 | 0.4630 | 1283.8 | 894.3 | |
0 | 4 | 0 | 2 | 21.27 | 250.43 | 21.86 | 309.62 | 0.4524 | 533.0 | 505.8 | |
0 | 8 | 0 | 5 | 22.10 | 250.20 | 21.63 | 311.40 | 0.4572 | 704.0 | 672.5 | |
7 | 39 | 4 | 21 | 21.54 | 249.47 | 20.90 | 311.29 | 0.4435 | -909.7 | -342.2 | |
0 | 5 | 0 | 3 | 22.72 | 247.33 | 18.76 | 316.26 | 0.4309 | -495.0 | -460.7 | |
14 | 53 | 8 | 29 | 22.32 | 246.78 | 18.21 | 316.36 | 0.4206 | -1394.0 | -924.5 | |
8 | 20 | 5 | 11 | 23.72 | 245.88 | 17.32 | 320.10 | 0.4266 | -1070.1 | -746.4 |
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. |