| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.66 | 0.00 | 4.67 | 12.25 | 19.17 | -43.82 | 72.97 | 0.7102 | -542.8 | -452.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-03 20:00:25 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 | 1.37 | 0.00 | 0.90 | 14.78 | 23.70 | -39.29 | 67.98 | 0.6629 | -566.0 | -466.4 | |
| 0.00 | 2.22 | 0.00 | 1.54 | 14.51 | 20.31 | -42.68 | 69.64 | 0.7024 | -482.0 | -385.4 | |
| 0.00 | 0.68 | 0.00 | 0.49 | 9.18 | 16.77 | -46.22 | 77.89 | 0.7313 | -609.0 | -584.2 | |
| 0.00 | 0.77 | 0.00 | 0.56 | 9.96 | 16.55 | -46.45 | 76.89 | 0.7353 | -477.0 | -440.8 | |
| 0.00 | 1.62 | 0.00 | 1.18 | 9.72 | 16.46 | -46.53 | 77.23 | 0.7359 | -580.0 | -479.0 | |
| 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. | |