| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.88 | 19.90 | 4.13 | 12.00 | 14.04 | 33.73 | -29.87 | 58.33 | 0.5703 | -638.9 | -458.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-04 18:59:07 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 | 1.07 | 0.00 | 0.64 | 15.03 | 35.62 | -27.98 | 55.13 | 0.5545 | 651.0 | 511.0 | |
| 0.00 | 1.25 | 0.00 | 0.76 | 17.14 | 34.83 | -28.78 | 52.73 | 0.5803 | -745.0 | -646.6 | |
| 0.00 | 0.80 | 0.00 | 0.47 | 10.99 | 34.82 | -28.78 | 62.34 | 0.5357 | -677.0 | -563.0 | |
| 6.88 | 8.75 | 4.13 | 5.25 | 13.88 | 33.97 | -29.64 | 58.36 | 0.5660 | -878.5 | -690.6 | |
| 0.00 | 3.39 | 0.00 | 2.07 | 15.87 | 33.59 | -30.02 | 55.68 | 0.5848 | -712.0 | -451.9 | |
| 0.00 | 2.41 | 0.00 | 1.43 | 11.64 | 33.90 | -29.71 | 61.98 | 0.5519 | -793.0 | -504.5 | |
| 0.00 | 2.23 | 0.00 | 1.38 | 13.26 | 31.04 | -32.57 | 61.57 | 0.5980 | -568.0 | -541.3 | |
| 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. | |