| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.27 | 9.33 | 3.72 | 27.79 | 9.48 | 99.96 | 79.48 | 280.40 | 0.9867 | 237.1 | 190.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-13 20:00:24 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 | 1.44 | 0.00 | 4.26 | 8.98 | 99.96 | 79.48 | 279.90 | 0.9866 | 344.0 | 308.9 | |
| 0.00 | 1.27 | 0.00 | 4.05 | 9.96 | 100.55 | 80.07 | 280.83 | 0.9885 | -144.0 | -104.7 | |
| 1.27 | 3.31 | 3.72 | 9.66 | 9.30 | 99.74 | 79.26 | 280.24 | 0.9861 | 311.4 | 289.4 | |
| 0.00 | 3.31 | 0.00 | 9.82 | 9.67 | 99.92 | 79.44 | 280.60 | 0.9867 | 235.0 | 200.7 | |
| 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. | |