| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 36.78 | 146.98 | 33.92 | 129.60 | 17.68 | 60.68 | -53.92 | 68.76 | 0.8276 | -473.6 | -199.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-04 21:58:56 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 |
| 20.05 | 121.90 | 17.14 | 104.55 | 17.03 | 61.72 | -52.87 | 69.28 | 0.8173 | -926.5 | -229.0 | |
| 0.00 | 0.94 | 0.00 | 0.93 | 23.50 | 57.21 | -57.38 | 62.93 | 0.8695 | 394.0 | 386.3 | |
| 0.00 | 1.28 | 0.00 | 1.14 | 17.30 | 60.03 | -54.57 | 69.36 | 0.8334 | -280.0 | -206.5 | |
| 10.58 | 14.42 | 10.42 | 14.21 | 20.98 | 56.93 | -57.67 | 65.83 | 0.8668 | -439.0 | -173.0 | |
| 0.43 | -4.00 | 0.42 | -4.00 | 21.01 | 56.55 | -58.04 | 65.89 | 0.8698 | 137.8 | 999999 | |
| 2.82 | 6.82 | 2.92 | 7.06 | 19.64 | 54.88 | -59.72 | 67.77 | 0.8806 | 504.8 | 548.4 | |
| 1.71 | -6.00 | 1.76 | -6.00 | 19.39 | 55.03 | -59.57 | 68.02 | 0.8790 | 565.5 | 999999 | |
| 1.19 | 1.62 | 1.26 | 1.71 | 19.67 | 54.23 | -60.37 | 67.87 | 0.8856 | 151.1 | 272.0 | |
| 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. | |