| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.43 | 27.90 | 0.78 | 14.97 | 17.57 | 111.41 | -3.96 | 9.31 | 0.3799 | -373.1 | -204.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-30 20:59:07 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 | 1.34 | 0.00 | 0.70 | 13.60 | 116.34 | 0.97 | 356.92 | 0.3082 | -851.0 | -680.6 | |
| 0.00 | 3.12 | 0.00 | 1.62 | 13.73 | 116.06 | 0.69 | 357.82 | 0.3101 | -733.0 | -655.2 | |
| 0.00 | 1.69 | 0.00 | 0.89 | 14.59 | 113.66 | -1.71 | 5.10 | 0.3254 | -972.0 | -707.1 | |
| 0.00 | 1.07 | 0.00 | 0.56 | 14.21 | 112.67 | -2.70 | 8.21 | 0.3211 | -917.0 | -790.5 | |
| 0.00 | 1.69 | 0.00 | 0.88 | 14.08 | 112.29 | -3.07 | 9.39 | 0.3200 | -900.0 | -665.9 | |
| 0.00 | 2.05 | 0.00 | 1.07 | 13.80 | 112.23 | -3.13 | 9.73 | 0.3154 | -823.0 | -605.9 | |
| 1.43 | 2.23 | 0.78 | 1.23 | 21.19 | 111.36 | -4.01 | 8.64 | 0.4360 | -803.4 | -767.4 | |
| 0.00 | 1.43 | 0.00 | 0.78 | 21.22 | 111.13 | -4.24 | 9.10 | 0.4371 | -759.0 | -646.7 | |
| 0.00 | 2.05 | 0.00 | 1.07 | 13.55 | 111.24 | -4.12 | 12.90 | 0.3146 | -675.0 | -680.5 | |
| 0.00 | 1.69 | 0.00 | 0.88 | 13.49 | 111.06 | -4.31 | 13.50 | 0.3143 | -761.0 | -692.9 | |
| 0.00 | 6.42 | 0.00 | 3.55 | 21.60 | 110.24 | -5.13 | 10.80 | 0.4453 | 779.0 | 619.3 | |
| 0.00 | 0.98 | 0.00 | 0.55 | 22.17 | 106.77 | -8.60 | 17.32 | 0.4670 | 644.0 | 455.2 | |
| 0.00 | 1.07 | 0.00 | 0.59 | 20.52 | 104.87 | -10.49 | 22.22 | 0.4530 | 787.0 | 601.9 | |
| 0.00 | 1.07 | 0.00 | 0.60 | 21.96 | 104.63 | -10.73 | 21.41 | 0.4749 | 667.0 | 536.6 | |
| 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. | |