| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.55 | 0.00 | 5.17 | 11.68 | 48.56 | -57.28 | 76.42 | 0.8497 | 427.8 | 429.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-05 13:58:56 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 | 2.05 | 0.00 | 1.88 | 11.20 | 49.05 | -56.79 | 76.91 | 0.8448 | 677.0 | 618.0 | |
| 0.00 | 1.02 | 0.00 | 0.95 | 11.44 | 48.59 | -57.25 | 76.69 | 0.8492 | 532.0 | 471.0 | |
| 0.00 | 0.77 | 0.00 | 0.73 | 12.46 | 48.24 | -57.60 | 75.54 | 0.8535 | 293.0 | 284.4 | |
| 0.00 | 0.60 | 0.00 | 0.56 | 12.13 | 48.30 | -57.54 | 75.92 | 0.8526 | 384.0 | 337.6 | |
| 0.00 | 1.11 | 0.00 | 1.05 | 11.95 | 48.02 | -57.82 | 76.17 | 0.8548 | 253.0 | 201.4 | |
| 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. | |