| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 11.48 | 43.06 | 11.42 | 42.66 | 9.88 | 147.91 | 57.91 | 285.46 | 0.8675 | -392.0 | -314.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 13:00:32 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 |
| 0.79 | 2.81 | 0.83 | 2.96 | 10.44 | 149.86 | 59.86 | 285.54 | 0.8847 | -381.4 | -282.6 | |
| 0.00 | 4.56 | 0.00 | 4.72 | 9.93 | 149.40 | 59.40 | 285.09 | 0.8801 | -564.0 | -367.9 | |
| 3.77 | 11.75 | 3.83 | 11.90 | 9.62 | 148.83 | 58.83 | 284.90 | 0.8749 | -496.3 | -368.6 | |
| 1.58 | -3.00 | 1.59 | -3.00 | 9.82 | 148.59 | 58.59 | 285.18 | 0.8733 | -453.8 | 999999 | |
| 3.24 | 16.05 | 3.22 | 15.94 | 9.73 | 148.04 | 58.04 | 285.23 | 0.8686 | -843.5 | -526.7 | |
| 0.61 | 2.54 | 0.58 | 2.39 | 10.37 | 145.97 | 55.97 | 286.52 | 0.8523 | 570.4 | 398.2 | |
| 1.49 | 3.86 | 1.37 | 3.56 | 9.80 | 145.28 | 55.27 | 286.07 | 0.8449 | 376.8 | 332.6 | |
| 0.00 | 1.49 | 0.00 | 1.19 | 11.72 | 138.63 | 48.63 | 290.57 | 0.7871 | 112.0 | 133.6 | |
| 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. | |