| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 28.07 | 146.48 | 15.89 | 82.73 | 16.27 | 28.22 | 27.58 | 291.68 | 0.4800 | -798.6 | -345.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-21 10:00:38 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 | 0.81 | 0.00 | 0.47 | 16.81 | 30.33 | 29.68 | 291.54 | 0.5117 | -668.0 | -575.1 | |
| 28.07 | 132.53 | 15.89 | 75.08 | 16.19 | 28.63 | 27.99 | 291.22 | 0.4854 | -1196.6 | -357.0 | |
| 0.00 | 1.08 | 0.00 | 0.60 | 16.71 | 25.95 | 25.31 | 293.89 | 0.4496 | -914.0 | -715.2 | |
| 0.00 | 1.53 | 0.00 | 0.84 | 17.09 | 25.16 | 24.52 | 295.26 | 0.4405 | -550.0 | -562.5 | |
| 0.00 | 1.89 | 0.00 | 1.04 | 17.01 | 24.90 | 24.26 | 295.28 | 0.4364 | -890.0 | -691.7 | |
| 0.00 | 1.98 | 0.00 | 1.09 | 16.99 | 24.69 | 24.05 | 295.40 | 0.4333 | -916.0 | -826.6 | |
| 0.00 | 1.89 | 0.00 | 1.04 | 17.00 | 24.42 | 23.78 | 295.64 | 0.4295 | -820.0 | -689.3 | |
| 0.00 | 1.17 | 0.00 | 0.63 | 17.89 | 22.67 | 22.03 | 299.12 | 0.4104 | 769.0 | 617.4 | |
| 0.00 | 1.62 | 0.00 | 0.87 | 17.10 | 21.61 | 20.97 | 298.35 | 0.3904 | 768.0 | 526.3 | |
| 0.00 | 0.90 | 0.00 | 0.49 | 18.67 | 21.67 | 21.03 | 301.89 | 0.4022 | 761.0 | 611.4 | |
| 0.00 | 1.08 | 0.00 | 0.58 | 16.18 | 20.60 | 19.96 | 297.16 | 0.3700 | 797.0 | 658.2 | |
| 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. | |