| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 15.98 | 86.67 | 15.14 | 81.60 | 16.54 | 28.64 | 58.85 | 285.18 | 0.8518 | -525.9 | -189.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-23 18:00:38 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 |
| 15.98 | 83.43 | 15.14 | 79.05 | 16.51 | 28.88 | 59.09 | 285.12 | 0.8541 | -774.6 | -212.1 | |
| 0.00 | 0.54 | 0.00 | 0.43 | 17.42 | 21.89 | 52.09 | 286.70 | 0.7882 | 407.0 | 372.2 | |
| 0.00 | 0.81 | 0.00 | 0.65 | 17.73 | 21.97 | 52.17 | 287.08 | 0.7893 | 345.0 | 324.9 | |
| 0.00 | 1.17 | 0.00 | 0.91 | 17.07 | 20.63 | 50.83 | 286.39 | 0.7747 | 569.0 | 467.1 | |
| 0.00 | 0.72 | 0.00 | 0.56 | 18.10 | 20.63 | 50.83 | 287.72 | 0.7758 | 341.0 | 283.5 | |
| 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. | |