| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.47 | 16.11 | 1.37 | 8.93 | -25.49 | 75.00 | 7.60 | 195.47 | 0.4494 | -205.0 | -106.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-08 11:58:56 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 |
| 0.00 | 1.70 | 0.00 | 0.96 | -25.42 | 79.28 | 11.88 | 203.43 | 0.4695 | 885.0 | 688.5 | |
| 0.00 | 2.39 | 0.00 | 1.32 | -24.54 | 77.77 | 10.37 | 201.53 | 0.4481 | 1043.0 | 804.4 | |
| 0.00 | 1.36 | 0.00 | 0.76 | -25.39 | 76.09 | 8.69 | 197.66 | 0.4515 | 713.0 | 524.9 | |
| 2.47 | 4.26 | 1.37 | 2.36 | -25.65 | 73.96 | 6.56 | 193.38 | 0.4465 | -1008.5 | -766.8 | |
| 0.00 | 1.88 | 0.00 | 1.03 | -25.42 | 73.85 | 6.44 | 193.30 | 0.4426 | -658.0 | -652.0 | |
| 0.00 | 1.45 | 0.00 | 0.80 | -25.62 | 73.63 | 6.22 | 192.75 | 0.4448 | -816.0 | -539.0 | |
| 0.00 | 2.05 | 0.00 | 1.14 | -26.31 | 72.80 | 5.40 | 190.79 | 0.4527 | -846.0 | -613.2 | |
| 0.00 | 1.02 | 0.00 | 0.56 | -25.52 | 72.64 | 5.23 | 190.82 | 0.4402 | -655.0 | -638.2 | |
| 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. | |