| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.37 | 41.43 | 28.09 | 146.81 | -2.04 | 148.85 | -81.97 | 91.06 | 0.9897 | -150.4 | 43.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-02-21 13:00:27 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 |
| 8.94 | 32.06 | 26.63 | 98.55 | -2.48 | 150.11 | -80.71 | 91.35 | 0.9870 | -203.5 | -69.2 | |
| 0.43 | 3.09 | 1.46 | 10.38 | -2.51 | 148.88 | -81.94 | 91.52 | 0.9902 | 18.0 | 75.5 | |
| 0.00 | 1.55 | 0.00 | 5.98 | -2.60 | 147.91 | -82.91 | 91.73 | 0.9924 | 74.0 | 88.4 | |
| 0.00 | 1.03 | 0.00 | 6.57 | -0.85 | 145.39 | -85.43 | 90.29 | 0.9971 | 298.0 | 343.2 | |
| 0.00 | 3.70 | 0.00 | 25.33 | -0.30 | 145.05 | -85.76 | 89.78 | 0.9976 | 347.0 | 265.7 | |
| 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. | |