group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
20 | 98 | 19 | 93 | 23.49 | 114.30 | 51.70 | 302.70 | 0.8570 | 475.2 | -28.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
19 | 73 | 18 | 72 | 22.58 | 115.98 | 53.38 | 300.92 | 0.8659 | 500.2 | 51.1 | |
1 | 8 | 1 | 7 | 24.70 | 112.08 | 49.48 | 304.92 | 0.8444 | 502.0 | 270.9 | |
0 | 11 | 0 | 9 | 27.31 | 107.09 | 44.49 | 310.28 | 0.8185 | -731.0 | -550.8 | |
0 | 6 | 0 | 5 | 28.06 | 106.20 | 43.60 | 311.57 | 0.8157 | -698.0 | -645.2 |
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. |