group | Proj. U | Proj. WS | Corr. U | Corr. U+P | B | L | LCM | Pos. angle | r | MU | MP |
19 | 110 | 20 | 125 | -6.86 | 54.27 | 62.77 | 259.20 | 0.9003 | -35.2 | -70.9 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. U+P | B | L | LCM | Pos. angle | r | MU | MP |
10 | 59 | 11 | 70 | -7.76 | 55.38 | 63.88 | 258.44 | 0.9098 | -714.9 | -418.2 | |
8 | 51 | 8 | 55 | -5.70 | 52.90 | 61.39 | 260.21 | 0.8884 | 806.4 | 376.3 | |
1 | -2 | 1 | -2 | -5.91 | 52.60 | 61.10 | 259.91 | 0.8864 | 708.0 | 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. |