| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.81 | 29.85 | 6.51 | 23.97 | 7.70 | 347.93 | -52.17 | 85.73 | 0.7841 | -504.8 | -84.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-23 09:59:09 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 | 1.26 | 0.00 | 0.93 | 7.32 | 352.04 | -48.07 | 86.43 | 0.7416 | -451.0 | -401.3 | |
| 8.81 | 16.45 | 6.51 | 12.17 | 7.11 | 351.79 | -48.31 | 86.69 | 0.7446 | -819.6 | -600.1 | |
| 0.00 | 1.71 | 0.00 | 1.28 | 7.21 | 351.17 | -48.93 | 86.52 | 0.7516 | -437.0 | -343.0 | |
| 0.00 | 0.81 | 0.00 | 0.64 | 7.39 | 348.50 | -51.60 | 86.11 | 0.7813 | -683.0 | -546.4 | |
| 0.00 | 1.62 | 0.00 | 1.29 | 6.91 | 348.03 | -52.08 | 86.68 | 0.7866 | -601.0 | -464.1 | |
| 0.00 | 1.53 | 0.00 | 1.35 | 7.57 | 343.81 | -56.29 | 85.56 | 0.8293 | 501.0 | 468.5 | |
| 0.00 | 6.47 | 0.00 | 6.31 | 9.20 | 340.02 | -60.08 | 83.40 | 0.8633 | 691.0 | 482.1 | |
| 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. | |