| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.89 | 0.00 | 6.82 | -24.91 | 90.90 | 37.22 | 232.00 | 0.6976 | -92.7 | -62.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-04 13:00:25 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 | 1.88 | 0.00 | 1.38 | -24.93 | 95.57 | 41.89 | 234.82 | 0.7432 | 691.0 | 604.7 | |
| 0.00 | 1.19 | 0.00 | 0.84 | -23.97 | 93.26 | 39.58 | 234.73 | 0.7155 | -557.0 | -439.6 | |
| 0.00 | 1.19 | 0.00 | 0.81 | -23.30 | 90.64 | 36.96 | 233.99 | 0.6851 | 591.0 | 500.3 | |
| 0.00 | 2.05 | 0.00 | 1.38 | -25.51 | 88.95 | 35.27 | 230.06 | 0.6822 | -418.0 | -393.6 | |
| 0.00 | 3.07 | 0.00 | 2.07 | -25.40 | 88.64 | 34.96 | 229.96 | 0.6784 | -283.0 | -271.7 | |
| 0.00 | 0.51 | 0.00 | 0.34 | -25.63 | 88.32 | 34.64 | 229.44 | 0.6768 | -580.0 | -551.0 | |
| 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. | |