| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.99 | 18.31 | 4.09 | 12.64 | 19.55 | 33.00 | -35.93 | 52.70 | 0.6969 | -132.2 | -103.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-11 11:58:57 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 |
| 5.05 | 11.21 | 3.41 | 7.58 | 19.29 | 34.41 | -34.52 | 51.99 | 0.6812 | -836.1 | -606.9 | |
| 0.00 | 0.94 | 0.00 | 0.66 | 20.18 | 32.48 | -36.46 | 52.37 | 0.7066 | -521.0 | -467.9 | |
| 0.00 | 1.54 | 0.00 | 1.08 | 19.22 | 31.32 | -37.61 | 54.34 | 0.7117 | 571.0 | 431.6 | |
| 0.00 | 1.71 | 0.00 | 1.23 | 20.37 | 30.47 | -38.46 | 53.56 | 0.7272 | 603.0 | 499.8 | |
| 0.94 | 1.28 | 0.68 | 0.92 | 20.14 | 30.46 | -38.47 | 53.84 | 0.7259 | 695.5 | 681.8 | |
| 0.00 | 1.63 | 0.00 | 1.17 | 19.88 | 30.37 | -38.56 | 54.20 | 0.7251 | 656.0 | 603.2 | |
| 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. | |