| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 100.89 | 586.10 | 53.80 | 312.70 | 23.14 | 120.62 | 14.04 | 322.95 | 0.3718 | -1496.3 | -434.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-11 21:59:02 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 | 2.01 | 0.00 | 1.12 | 25.19 | 126.58 | 20.00 | 317.04 | 0.4560 | 388.0 | 280.0 | |
| 0.00 | 2.10 | 0.00 | 1.12 | 21.51 | 121.66 | 15.08 | 317.97 | 0.3632 | 585.0 | 492.8 | |
| 100.89 | 580.15 | 53.80 | 309.47 | 23.13 | 120.60 | 14.02 | 322.96 | 0.3715 | -1581.8 | -440.2 | |
| 0.00 | 1.84 | 0.00 | 0.99 | 26.01 | 118.95 | 12.37 | 330.64 | 0.3943 | -862.0 | -742.4 | |
| 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. | |