| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 18.62 | 65.94 | 13.94 | 49.19 | -17.90 | 26.85 | -46.24 | 113.45 | 0.7515 | 749.0 | 533.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-31 06:59:10 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 |
| 1.54 | 55.20 | 1.15 | 41.06 | -18.06 | 26.88 | -46.21 | 113.67 | 0.7517 | 737.9 | 543.8 | |
| 12.11 | -1.00 | 9.04 | -1.00 | -17.74 | 26.94 | -46.15 | 113.28 | 0.7500 | 871.1 | 999999 | |
| 2.98 | 8.40 | 2.25 | 6.34 | -18.37 | 26.58 | -46.51 | 113.97 | 0.7558 | 685.0 | 525.7 | |
| 1.99 | -3.00 | 1.50 | -3.00 | -18.60 | 26.41 | -46.68 | 114.20 | 0.7583 | 556.6 | 999999 | |
| 0.00 | 1.26 | 0.00 | 0.96 | -18.62 | 26.12 | -46.97 | 114.13 | 0.7614 | 504.0 | 379.6 | |
| 0.00 | 1.08 | 0.00 | 0.83 | -18.75 | 26.02 | -47.07 | 114.26 | 0.7627 | 336.0 | 346.9 | |
| 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. | |