| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.88 | 0.00 | 4.02 | 6.60 | 211.76 | -13.07 | 86.60 | 0.2277 | -289.5 | -230.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-04 11:00:39 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 | 1.54 | 0.00 | 0.78 | 7.22 | 214.11 | -10.72 | 82.88 | 0.1868 | -1000.0 | -746.1 | |
| 0.00 | 1.45 | 0.00 | 0.73 | 7.34 | 213.83 | -11.00 | 82.42 | 0.1918 | -578.0 | -542.1 | |
| 0.00 | 1.36 | 0.00 | 0.69 | 7.15 | 213.74 | -11.09 | 83.43 | 0.1930 | -820.0 | -657.1 | |
| 0.00 | 1.00 | 0.00 | 0.51 | 2.11 | 212.60 | -12.23 | 107.21 | 0.2226 | -897.0 | -711.1 | |
| 0.00 | 1.63 | 0.00 | 0.84 | 7.66 | 207.94 | -16.89 | 83.41 | 0.2912 | 777.0 | 695.7 | |
| 0.00 | 0.90 | 0.00 | 0.47 | 6.55 | 207.69 | -17.14 | 87.23 | 0.2945 | 781.0 | 580.7 | |
| 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. | |