| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.19 | 31.81 | 4.98 | 19.40 | -21.23 | 334.74 | -24.11 | 139.32 | 0.5858 | -12.4 | -192.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-20 01:59:01 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 |
| 1.92 | 2.88 | 1.14 | 1.71 | -20.48 | 337.16 | -21.69 | 141.30 | 0.5558 | 912.4 | 756.7 | |
| 0.00 | 0.96 | 0.00 | 0.57 | -20.77 | 336.63 | -22.21 | 140.98 | 0.5636 | 885.0 | 743.5 | |
| 0.00 | 2.70 | 0.00 | 1.62 | -20.94 | 336.47 | -22.38 | 140.98 | 0.5670 | 721.0 | 562.6 | |
| 0.00 | 0.61 | 0.00 | 0.37 | -21.24 | 336.42 | -22.43 | 141.28 | 0.5707 | 566.0 | 418.6 | |
| 1.22 | 1.31 | 0.73 | 0.78 | -20.64 | 336.48 | -22.37 | 140.64 | 0.5637 | 705.7 | 1022.0 | |
| 0.00 | 3.05 | 0.00 | 1.84 | -20.80 | 335.87 | -22.98 | 140.08 | 0.5710 | 519.0 | 617.5 | |
| 2.35 | 9.06 | 1.44 | 5.55 | -21.20 | 334.05 | -24.80 | 138.47 | 0.5920 | -854.2 | -663.5 | |
| 0.00 | 0.96 | 0.00 | 0.59 | -21.81 | 333.94 | -24.91 | 139.06 | 0.5991 | -543.0 | -513.9 | |
| 0.00 | 2.70 | 0.00 | 1.67 | -21.58 | 333.80 | -25.05 | 138.64 | 0.5980 | -893.0 | -743.2 | |
| 2.70 | 6.36 | 1.67 | 3.94 | -21.73 | 333.49 | -25.36 | 138.48 | 0.6024 | -774.5 | -591.3 | |
| 0.00 | 1.22 | 0.00 | 0.76 | -21.81 | 333.15 | -25.70 | 138.21 | 0.6063 | -436.0 | -362.4 | |
| 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. | |