| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 34.51 | 175.93 | 36.30 | 186.98 | -23.85 | 194.46 | -60.79 | 115.51 | 0.8860 | 480.1 | 138.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-12 13:00:37 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 |
| 29.59 | 163.55 | 30.97 | 171.80 | -23.81 | 194.92 | -60.33 | 115.54 | 0.8829 | 660.0 | 177.5 | |
| 1.70 | -1.00 | 1.81 | -1.00 | -23.36 | 194.39 | -60.86 | 114.94 | 0.8862 | 134.2 | 999999 | |
| 1.70 | -1.00 | 1.84 | -1.00 | -23.77 | 193.93 | -61.32 | 115.32 | 0.8901 | 109.7 | 999999 | |
| 0.00 | 1.97 | 0.00 | 2.23 | -24.26 | 192.51 | -62.74 | 115.63 | 0.9007 | 177.0 | 141.9 | |
| 1.52 | 3.05 | 1.68 | 3.37 | -23.11 | 193.06 | -62.19 | 114.44 | 0.8955 | -440.2 | -299.7 | |
| 0.00 | 3.05 | 0.00 | 3.32 | -22.17 | 193.38 | -61.87 | 113.46 | 0.8921 | -147.0 | -207.4 | |
| 0.00 | 3.23 | 0.00 | 4.67 | -26.85 | 186.22 | -69.03 | 117.55 | 0.9411 | -592.0 | -461.3 | |
| 0.00 | 1.08 | 0.00 | 1.59 | -27.03 | 185.69 | -69.57 | 117.67 | 0.9440 | -236.0 | -252.1 | |
| 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. | |