group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
28 | 208 | 35 | 243 | -21.92 | 116.21 | 63.39 | 246.30 | 0.9036 | 636.7 | 291.3 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 1999-05-24 12:47:33 UT ![]() |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
4 | 20 | 8 | 40 | -19.40 | 127.96 | 75.15 | 250.38 | 0.9690 | -151.6 | -18.1 | |
0 | 6 | 0 | 8 | -18.72 | 120.27 | 67.45 | 250.46 | 0.9298 | -345.0 | -308.4 | |
0 | 8 | 0 | 10 | -19.65 | 119.85 | 67.03 | 249.42 | 0.9278 | -336.0 | -349.7 | |
2 | 21 | 3 | 23 | -21.59 | 114.15 | 61.33 | 246.48 | 0.8916 | 623.9 | 408.2 | |
22 | 153 | 24 | 162 | -22.89 | 113.17 | 60.36 | 244.87 | 0.8863 | 982.5 | 427.1 |
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. |
||
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. |
||
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. |