| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.51 | 9.35 | 1.43 | 5.27 | -18.08 | 354.75 | -13.96 | 151.45 | 0.4817 | 22.3 | -53.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-25 18:59:08 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 | 1.17 | 0.00 | 0.65 | -18.39 | 356.96 | -11.75 | 155.64 | 0.4705 | 847.0 | 695.9 | |
| 0.00 | 1.26 | 0.00 | 0.70 | -17.21 | 355.93 | -12.78 | 152.62 | 0.4612 | 734.0 | 544.9 | |
| 0.00 | 0.99 | 0.00 | 0.56 | -18.73 | 355.46 | -13.25 | 153.31 | 0.4851 | -651.0 | -469.9 | |
| 0.00 | 1.17 | 0.00 | 0.66 | -18.21 | 354.88 | -13.83 | 151.78 | 0.4822 | -795.0 | -684.0 | |
| 2.51 | 2.96 | 1.43 | 1.68 | -18.28 | 353.82 | -14.89 | 150.06 | 0.4909 | 880.8 | 714.8 | |
| 0.00 | 0.81 | 0.00 | 0.46 | -17.78 | 353.66 | -15.05 | 149.27 | 0.4857 | -692.0 | -541.6 | |
| 0.00 | 0.99 | 0.00 | 0.56 | -17.65 | 353.51 | -15.20 | 148.87 | 0.4852 | -537.0 | -469.3 | |
| 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. | |