| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.93 | 80.41 | 62.51 | 269.96 | 10.85 | 309.01 | -82.29 | 79.85 | 0.9888 | -162.5 | 44.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-17 14:59:01 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 |
| 4.71 | 31.57 | 12.88 | 88.71 | 11.91 | 310.77 | -80.52 | 78.90 | 0.9843 | -301.1 | -3.3 | |
| 1.83 | -1.00 | 5.16 | -1.00 | 11.88 | 310.43 | -80.86 | 78.91 | 0.9854 | 179.2 | 999999 | |
| 0.00 | 1.57 | 0.00 | 4.83 | 10.71 | 309.72 | -81.58 | 80.05 | 0.9876 | -299.0 | -262.1 | |
| 0.00 | 2.09 | 0.00 | 6.87 | 10.83 | 309.10 | -82.19 | 79.88 | 0.9892 | 207.0 | 150.3 | |
| 10.64 | 34.28 | 32.36 | 108.07 | 9.90 | 309.88 | -81.41 | 80.87 | 0.9873 | -315.9 | -20.4 | |
| 3.75 | -5.00 | 12.11 | -5.00 | 10.08 | 309.22 | -82.08 | 80.65 | 0.9890 | 174.5 | 999999 | |
| 0.00 | 2.53 | 0.00 | 11.99 | 11.49 | 306.15 | -85.15 | 78.99 | 0.9952 | 213.0 | 167.8 | |
| 0.00 | 8.37 | 0.00 | 49.49 | 10.78 | 305.11 | -86.18 | 79.62 | 0.9969 | 134.0 | 182.9 | |
| 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. | |