group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
12 | 71 | 10 | 59 | -7.24 | 53.98 | 51.90 | 256.22 | 0.8060 | -269.4 | -245.9 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
3 | 26 | 3 | 23 | -7.73 | 55.05 | 52.97 | 255.92 | 0.8178 | -702.2 | -579.8 | |
0 | 7 | 0 | 6 | -7.61 | 54.11 | 52.03 | 255.80 | 0.8082 | -838.0 | -674.5 | |
5 | 13 | 4 | 10 | -7.85 | 53.63 | 51.55 | 255.37 | 0.8041 | -720.1 | -564.2 | |
0 | 7 | 0 | 5 | -6.22 | 53.06 | 50.98 | 257.19 | 0.7943 | 562.0 | 430.4 | |
4 | 10 | 3 | 8 | -6.54 | 53.04 | 50.96 | 256.79 | 0.7949 | 274.3 | 128.9 | |
0 | 8 | 0 | 7 | -5.94 | 52.58 | 50.50 | 257.41 | 0.7887 | 938.0 | 631.6 |
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. |