| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 11.85 | 0.00 | 6.74 | -15.38 | 37.41 | 25.46 | 237.32 | 0.4940 | -230.1 | -76.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-07 17:00:25 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 | 1.45 | 0.00 | 0.87 | -19.42 | 41.37 | 29.42 | 234.26 | 0.5730 | 575.0 | 529.5 | |
| 0.00 | 0.77 | 0.00 | 0.46 | -19.29 | 41.16 | 29.22 | 234.28 | 0.5697 | 636.0 | 574.1 | |
| 0.00 | 2.73 | 0.00 | 1.57 | -15.60 | 38.86 | 26.91 | 238.24 | 0.5148 | 814.0 | 683.0 | |
| 0.00 | 1.11 | 0.00 | 0.62 | -12.94 | 37.00 | 25.06 | 241.41 | 0.4721 | -793.0 | -626.3 | |
| 0.00 | 1.53 | 0.00 | 0.86 | -14.00 | 36.25 | 24.31 | 238.68 | 0.4695 | -703.0 | -550.7 | |
| 0.00 | 0.85 | 0.00 | 0.47 | -13.21 | 35.70 | 23.76 | 239.66 | 0.4564 | -780.0 | -591.4 | |
| 0.00 | 2.47 | 0.00 | 1.38 | -14.49 | 35.37 | 23.43 | 236.87 | 0.4616 | -722.0 | -597.8 | |
| 0.00 | 0.94 | 0.00 | 0.51 | -14.00 | 32.30 | 20.35 | 234.26 | 0.4176 | -868.0 | -687.2 | |
| 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. | |