group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
7 | 28 | 4 | 16 | 9.77 | 113.31 | -31.59 | 80.18 | 0.5259 | 616.3 | 130.1 |
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back to the solar disc SOHO MDI 2000-07-26 18:52:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
4 | 10 | 2 | 6 | 10.02 | 114.39 | -30.52 | 79.51 | 0.5106 | 828.3 | 578.5 | |
3 | 7 | 2 | 4 | 9.92 | 113.93 | -30.97 | 79.80 | 0.5171 | 648.6 | 479.2 | |
0 | 6 | 0 | 3 | 9.31 | 112.05 | -32.85 | 81.27 | 0.5437 | -653.0 | -605.7 | |
0 | 5 | 0 | 3 | 9.52 | 111.60 | -33.30 | 80.94 | 0.5505 | -558.0 | -496.4 |
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. |