| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.08 | 0.00 | 5.51 | 14.78 | 242.16 | -43.07 | 73.75 | 0.6899 | 190.5 | 133.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-25 15:59:00 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 | 0.78 | 0.00 | 0.52 | 15.01 | 243.85 | -41.38 | 73.06 | 0.6698 | -677.0 | -647.3 | |
| 0.00 | 1.48 | 0.00 | 0.98 | 15.22 | 243.80 | -41.44 | 72.76 | 0.6709 | -316.0 | -364.5 | |
| 0.00 | 1.04 | 0.00 | 0.69 | 14.70 | 243.79 | -41.44 | 73.53 | 0.6698 | -736.0 | -596.8 | |
| 0.00 | 0.61 | 0.00 | 0.41 | 14.26 | 242.44 | -42.79 | 74.46 | 0.6857 | 525.0 | 436.9 | |
| 0.00 | 0.52 | 0.00 | 0.36 | 15.55 | 242.08 | -43.15 | 72.69 | 0.6925 | 647.0 | 557.2 | |
| 0.00 | 0.78 | 0.00 | 0.53 | 14.11 | 242.44 | -42.80 | 74.69 | 0.6855 | 610.0 | 536.3 | |
| 0.00 | 1.74 | 0.00 | 1.22 | 14.77 | 240.34 | -44.89 | 74.13 | 0.7118 | 716.0 | 521.9 | |
| 0.00 | 1.13 | 0.00 | 0.80 | 14.55 | 240.14 | -45.09 | 74.48 | 0.7138 | 755.0 | 683.2 | |
| 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. | |