| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 15.84 | 0.00 | 7.98 | 8.84 | 26.61 | 7.82 | 229.61 | 0.1605 | -412.5 | -327.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-20 01:00:38 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 |
| 0.00 | 1.80 | 0.00 | 0.92 | 7.32 | 32.18 | 13.39 | 272.76 | 0.2309 | -1005.0 | -815.2 | |
| 0.00 | 1.71 | 0.00 | 0.87 | 7.24 | 31.52 | 12.73 | 272.49 | 0.2197 | -892.0 | -724.4 | |
| 0.00 | 1.80 | 0.00 | 0.91 | 7.32 | 29.55 | 10.76 | 273.12 | 0.1863 | -1005.0 | -874.2 | |
| 0.00 | 1.53 | 0.00 | 0.77 | 7.09 | 29.36 | 10.57 | 271.84 | 0.1829 | -1080.0 | -931.5 | |
| 0.00 | 0.99 | 0.00 | 0.50 | 8.40 | 28.71 | 9.92 | 279.54 | 0.1735 | -1038.0 | -900.1 | |
| 0.00 | 0.99 | 0.00 | 0.50 | 8.14 | 28.45 | 9.66 | 278.18 | 0.1686 | -1008.0 | -863.0 | |
| 0.00 | 1.17 | 0.00 | 0.59 | 8.08 | 28.29 | 9.50 | 277.94 | 0.1658 | -467.0 | -570.3 | |
| 0.00 | 1.08 | 0.00 | 0.54 | 10.25 | 27.33 | 8.54 | 292.47 | 0.1588 | -775.0 | -624.9 | |
| 0.00 | 1.71 | 0.00 | 0.85 | 9.96 | 22.21 | 3.42 | 312.69 | 0.0803 | 955.0 | 752.3 | |
| 0.00 | 1.98 | 0.00 | 0.99 | 12.35 | 18.36 | -0.43 | 4.42 | 0.0962 | 908.0 | 834.7 | |
| 0.00 | 1.08 | 0.00 | 0.54 | 11.40 | 16.25 | -2.54 | 28.73 | 0.0907 | 870.0 | 683.2 | |
| 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. | |