| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 11.68 | 107.08 | 47.10 | 557.07 | -18.90 | 35.63 | 85.76 | 251.63 | 0.9936 | -164.0 | -29.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-20 12:58:57 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 |
| 2.66 | 37.19 | 17.19 | 333.73 | -18.50 | 37.33 | 87.46 | 251.89 | 0.9971 | -578.3 | -162.3 | |
| 1.37 | -1.00 | 9.32 | -1.00 | -18.75 | 37.91 | 88.04 | 251.59 | 0.9978 | -428.2 | 999999 | |
| 0.00 | 14.77 | 0.00 | 58.48 | -18.52 | 34.53 | 84.66 | 252.12 | 0.9926 | 279.0 | 145.9 | |
| 0.00 | 1.72 | 0.00 | 7.57 | -18.81 | 35.31 | 85.44 | 251.77 | 0.9940 | 417.0 | 393.4 | |
| 0.00 | 3.86 | 0.00 | 17.14 | -19.39 | 35.47 | 85.60 | 251.17 | 0.9942 | 391.0 | 370.4 | |
| 0.69 | 24.56 | 2.05 | 73.36 | -19.11 | 32.04 | 82.17 | 251.72 | 0.9866 | 339.0 | 140.4 | |
| 0.00 | 0.94 | 0.00 | 2.94 | -19.48 | 32.57 | 82.71 | 251.31 | 0.9879 | 371.0 | 329.2 | |
| 0.00 | 0.43 | 0.00 | 1.29 | -19.72 | 32.22 | 82.35 | 251.10 | 0.9870 | 118.0 | 160.6 | |
| 0.00 | 1.72 | 0.00 | 5.31 | -19.83 | 32.55 | 82.69 | 250.95 | 0.9878 | 286.0 | 241.9 | |
| 3.61 | 15.03 | 10.35 | 42.11 | -20.34 | 31.77 | 81.90 | 250.49 | 0.9856 | 442.3 | 224.2 | |
| 1.03 | -10.00 | 2.83 | -10.00 | -20.29 | 31.41 | 81.54 | 250.57 | 0.9846 | -217.5 | 999999 | |
| 2.32 | 4.12 | 5.36 | 9.55 | -21.49 | 29.29 | 79.42 | 249.45 | 0.9777 | -194.8 | -21.3 | |
| 0.00 | 1.80 | 0.00 | 3.63 | -20.52 | 27.27 | 77.40 | 250.53 | 0.9705 | -388.0 | -349.1 | |
| 0.00 | 0.94 | 0.00 | 1.96 | -20.76 | 27.68 | 77.81 | 250.27 | 0.9721 | -189.0 | -182.6 | |
| 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. | |