| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 11.84 | 0.00 | 9.48 | 16.24 | 26.05 | 47.83 | 295.08 | 0.7869 | 301.8 | 228.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-17 01:00:24 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 | 1.02 | 0.00 | 0.92 | 15.78 | 31.60 | 53.37 | 292.41 | 0.8376 | -316.0 | -320.2 | |
| 0.00 | 1.36 | 0.00 | 1.22 | 15.83 | 31.36 | 53.13 | 292.55 | 0.8356 | -341.0 | -369.1 | |
| 0.00 | 3.15 | 0.00 | 2.46 | 16.13 | 24.85 | 46.63 | 295.38 | 0.7753 | 446.0 | 371.8 | |
| 0.00 | 0.94 | 0.00 | 0.73 | 16.41 | 24.80 | 46.58 | 295.74 | 0.7759 | 541.0 | 465.4 | |
| 0.00 | 1.62 | 0.00 | 1.25 | 16.01 | 24.46 | 46.24 | 295.41 | 0.7709 | 495.0 | 404.2 | |
| 0.00 | 1.19 | 0.00 | 0.93 | 16.64 | 24.52 | 46.30 | 296.15 | 0.7740 | 570.0 | 421.6 | |
| 0.00 | 1.79 | 0.00 | 1.37 | 16.09 | 23.82 | 45.60 | 295.80 | 0.7648 | 593.0 | 391.7 | |
| 0.00 | 0.77 | 0.00 | 0.60 | 18.16 | 23.99 | 45.77 | 298.22 | 0.7750 | 426.0 | 372.3 | |
| 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. | |