| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.13 | 0.00 | 5.40 | -6.44 | 145.41 | -33.28 | 90.86 | 0.5473 | 195.4 | 393.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-02-25 12:00:27 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 | 4.22 | 0.00 | 2.47 | -6.78 | 146.30 | -32.39 | 91.37 | 0.5341 | 1015.0 | 813.9 | |
| 0.00 | 1.81 | 0.00 | 1.06 | -6.76 | 146.05 | -32.63 | 91.36 | 0.5378 | 823.0 | 655.8 | |
| 0.00 | 0.86 | 0.00 | 0.51 | -6.27 | 145.80 | -32.88 | 90.47 | 0.5418 | 697.0 | 568.1 | |
| 0.00 | 1.21 | 0.00 | 0.73 | -5.54 | 143.14 | -35.54 | 89.51 | 0.5808 | -800.0 | -706.6 | |
| 0.00 | 1.03 | 0.00 | 0.63 | -5.78 | 143.12 | -35.56 | 89.92 | 0.5808 | -758.0 | -565.8 | |
| 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. | |