| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 37.28 | 0.00 | 133.69 | -4.57 | 33.03 | 81.41 | 264.37 | 0.9908 | 259.0 | 253.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-25 03:00:38 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 | 5.31 | -3.79 | 34.26 | 82.64 | 265.31 | 0.9935 | 290.0 | 290.0 | |
| 0.00 | 8.35 | 0.00 | 34.39 | -4.32 | 34.07 | 82.45 | 264.75 | 0.9932 | 428.0 | 256.4 | |
| 0.00 | 1.44 | 0.00 | 5.89 | -4.79 | 34.12 | 82.50 | 264.29 | 0.9934 | 268.0 | 277.0 | |
| 0.00 | 16.17 | 0.00 | 60.03 | -4.90 | 33.27 | 81.65 | 264.07 | 0.9917 | 501.0 | 329.8 | |
| 0.00 | 6.29 | 0.00 | 17.96 | -4.52 | 30.99 | 79.37 | 264.12 | 0.9857 | 366.0 | 234.8 | |
| 0.00 | 3.77 | 0.00 | 10.11 | -3.77 | 30.37 | 78.75 | 264.80 | 0.9835 | -299.0 | -208.2 | |
| 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. | |