| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.05 | 19.70 | 4.31 | 12.03 | 22.94 | 77.58 | -23.60 | 39.21 | 0.5858 | -474.4 | -201.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-12 16:58:55 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 |
| 0.00 | 1.78 | 0.00 | 1.06 | 24.43 | 82.67 | -18.51 | 31.24 | 0.5597 | -553.0 | -490.5 | |
| 4.33 | 11.30 | 2.65 | 6.92 | 23.44 | 77.51 | -23.67 | 38.74 | 0.5910 | -748.6 | -705.4 | |
| 2.72 | -2.00 | 1.66 | -2.00 | 23.21 | 77.42 | -23.77 | 39.12 | 0.5894 | -910.7 | 999999 | |
| 0.00 | 0.85 | 0.00 | 0.52 | 22.92 | 77.23 | -23.96 | 39.68 | 0.5881 | -824.0 | -652.2 | |
| 0.00 | 1.02 | 0.00 | 0.63 | 23.17 | 76.51 | -24.68 | 40.18 | 0.5972 | -716.0 | -603.2 | |
| 0.00 | 2.97 | 0.00 | 1.81 | 21.40 | 76.39 | -24.80 | 42.46 | 0.5807 | 596.0 | 525.9 | |
| 0.00 | 1.78 | 0.00 | 1.09 | 21.34 | 76.08 | -25.10 | 42.87 | 0.5831 | 576.0 | 529.3 | |
| 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. | |