| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 11.76 | 0.00 | 6.36 | -18.38 | 77.77 | 15.33 | 218.46 | 0.4050 | -363.7 | -78.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-08 20:58:55 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 | 2.73 | 0.00 | 1.49 | -18.07 | 80.45 | 18.01 | 223.52 | 0.4286 | 794.0 | 552.6 | |
| 0.00 | 2.22 | 0.00 | 1.20 | -17.61 | 78.97 | 16.53 | 221.95 | 0.4075 | 689.0 | 660.6 | |
| 0.00 | 1.19 | 0.00 | 0.65 | -18.82 | 77.18 | 14.74 | 216.81 | 0.4037 | -639.0 | -378.6 | |
| 0.00 | 1.28 | 0.00 | 0.69 | -19.26 | 76.48 | 14.04 | 214.84 | 0.4026 | -696.0 | -405.7 | |
| 0.00 | 1.36 | 0.00 | 0.73 | -18.17 | 76.22 | 13.78 | 216.06 | 0.3863 | -806.0 | -519.6 | |
| 0.00 | 1.53 | 0.00 | 0.82 | -18.14 | 75.87 | 13.43 | 215.41 | 0.3826 | -1009.0 | -833.4 | |
| 0.00 | 1.45 | 0.00 | 0.78 | -19.48 | 75.92 | 13.48 | 213.45 | 0.4004 | -879.0 | -675.2 | |
| 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. | |