group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
14.15 | 98.37 | 64.01 | 465.31 | 13.62 | 173.87 | 84.01 | 283.49 | 0.9921 | 408.2 | 15.8 |
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back to the solar disc SDO HMI 2010-11-19 21:58:57 UT ![]() See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
5.06 | 31.22 | 42.92 | 286.81 | 13.09 | 176.69 | 86.82 | 282.98 | 0.9983 | 455.9 | -5.8 | |
0.00 | 3.86 | 0.00 | 20.01 | 12.50 | 174.71 | 84.85 | 282.34 | 0.9958 | -415.0 | -339.4 | |
0.00 | 3.77 | 0.00 | 19.09 | 13.32 | 174.76 | 84.90 | 283.17 | 0.9959 | -372.0 | -371.7 | |
0.00 | 0.86 | 0.00 | 3.00 | 13.24 | 172.05 | 82.18 | 283.05 | 0.9906 | -130.0 | -126.9 | |
1.37 | 58.66 | 3.34 | 136.40 | 14.95 | 168.27 | 78.41 | 284.79 | 0.9798 | -189.3 | 191.2 | |
7.72 | -5.00 | 17.75 | -5.00 | 14.94 | 167.65 | 77.79 | 284.80 | 0.9777 | 525.9 | 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. |