group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
13 | 39 | 8 | 24 | -11.50 | 174.27 | 30.42 | 240.66 | 0.5715 | -1034.6 | -580.8 |
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back to the solar disc SOHO MDI 2000-07-26 20:47:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
13 | 24 | 8 | 15 | -11.79 | 174.74 | 30.89 | 240.58 | 0.5792 | -1060.5 | -570.9 | |
0 | 3 | 0 | 2 | -9.49 | 173.87 | 30.03 | 243.56 | 0.5534 | -887.0 | -772.0 | |
0 | 7 | 0 | 4 | -10.26 | 173.58 | 29.73 | 242.09 | 0.5544 | -656.0 | -654.3 | |
0 | 5 | 0 | 3 | -13.08 | 173.08 | 29.23 | 237.23 | 0.5678 | -523.0 | -405.0 |
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. |