| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.41 | 26.55 | 2.50 | 14.97 | -18.38 | 113.23 | 13.68 | 207.94 | 0.4804 | -463.2 | -479.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-18 21:59:09 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 | 1.53 | 0.00 | 0.88 | -18.57 | 116.35 | 16.80 | 212.89 | 0.5065 | 947.0 | 792.8 | |
| 0.00 | 0.90 | 0.00 | 0.51 | -18.38 | 115.79 | 16.24 | 212.23 | 0.4997 | 553.0 | 551.9 | |
| 0.00 | 1.26 | 0.00 | 0.71 | -17.68 | 113.81 | 14.26 | 209.74 | 0.4752 | -817.0 | -658.9 | |
| 0.00 | 1.17 | 0.00 | 0.65 | -16.87 | 113.32 | 13.77 | 209.78 | 0.4607 | 558.0 | 531.4 | |
| 3.24 | 4.68 | 1.84 | 2.65 | -18.84 | 113.45 | 13.90 | 207.89 | 0.4879 | -905.7 | -678.8 | |
| 0.00 | 2.61 | 0.00 | 1.46 | -17.73 | 113.32 | 13.77 | 208.83 | 0.4722 | -989.0 | -765.9 | |
| 0.00 | 1.98 | 0.00 | 1.12 | -19.11 | 113.27 | 13.72 | 207.33 | 0.4902 | -611.0 | -541.0 | |
| 1.17 | 5.49 | 0.66 | 3.10 | -18.66 | 113.14 | 13.59 | 207.54 | 0.4833 | -954.4 | -855.9 | |
| 0.00 | 1.89 | 0.00 | 1.07 | -18.90 | 113.09 | 13.54 | 207.23 | 0.4861 | -760.0 | -639.3 | |
| 0.00 | 1.08 | 0.00 | 0.61 | -19.10 | 112.94 | 13.39 | 206.78 | 0.4877 | -677.0 | -534.1 | |
| 0.00 | 0.90 | 0.00 | 0.50 | -16.44 | 111.06 | 11.50 | 205.99 | 0.4383 | -790.0 | -595.0 | |
| 0.00 | 3.06 | 0.00 | 1.71 | -18.00 | 111.09 | 11.54 | 204.51 | 0.4605 | -908.0 | -686.1 | |
| 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. | |