| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 18.68 | 76.79 | 19.46 | 79.31 | 18.44 | 103.26 | 59.48 | 291.30 | 0.8790 | -369.7 | -132.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-10 06:58:56 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 |
| 0.26 | 7.33 | 0.28 | 8.02 | 17.47 | 105.61 | 61.83 | 289.77 | 0.8955 | -117.3 | 345.7 | |
| 2.22 | -1.00 | 2.43 | -1.00 | 17.50 | 105.43 | 61.65 | 289.83 | 0.8942 | 304.5 | 999999 | |
| 2.56 | -1.00 | 2.79 | -1.00 | 17.28 | 105.30 | 61.53 | 289.61 | 0.8930 | 428.2 | 999999 | |
| 0.00 | 1.79 | 0.00 | 1.93 | 17.43 | 104.94 | 61.16 | 289.85 | 0.8904 | 119.0 | 308.4 | |
| 13.64 | 66.99 | 13.96 | 68.74 | 18.58 | 103.01 | 59.23 | 291.50 | 0.8773 | -762.5 | -175.8 | |
| 0.00 | 0.68 | 0.00 | 0.62 | 19.68 | 98.62 | 54.85 | 293.78 | 0.8434 | 438.0 | 387.0 | |
| 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. | |