| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.50 | 28.76 | 11.17 | 42.68 | 16.33 | 178.44 | -67.22 | 69.82 | 0.9438 | 34.8 | 247.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-25 09:58:58 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 |
| 0.26 | 1.72 | 0.37 | 2.48 | 17.00 | 179.35 | -66.31 | 68.90 | 0.9401 | -120.7 | -16.9 | |
| 0.00 | 1.98 | 0.00 | 2.82 | 15.96 | 179.29 | -66.38 | 69.99 | 0.9390 | 462.0 | 468.6 | |
| 2.76 | 13.69 | 3.88 | 19.25 | 15.26 | 179.35 | -66.31 | 70.70 | 0.9376 | 582.3 | 449.3 | |
| 0.00 | 1.64 | 0.00 | 2.35 | 15.64 | 179.02 | -66.64 | 70.39 | 0.9400 | 368.0 | 280.7 | |
| 4.48 | 7.15 | 6.92 | 11.05 | 17.15 | 177.79 | -67.87 | 69.13 | 0.9487 | -315.3 | -296.6 | |
| 0.00 | 1.89 | 0.00 | 3.56 | 19.74 | 174.74 | -70.92 | 67.23 | 0.9659 | 204.0 | 169.8 | |
| 0.00 | 0.69 | 0.00 | 1.17 | 16.63 | 175.76 | -69.90 | 70.14 | 0.9580 | -383.0 | -366.5 | |
| 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. | |