| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.47 | 12.18 | 1.65 | 8.08 | 7.76 | 45.19 | 40.94 | 282.47 | 0.6670 | -263.3 | -187.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-13 06:58:55 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 | 0.43 | 0.00 | 0.29 | 7.63 | 47.55 | 43.30 | 281.71 | 0.6966 | -114.0 | -168.8 | |
| 1.70 | 2.38 | 1.16 | 1.63 | 7.99 | 47.10 | 42.85 | 282.32 | 0.6918 | -619.8 | -542.9 | |
| 0.00 | 3.32 | 0.00 | 2.24 | 7.74 | 46.22 | 41.97 | 282.17 | 0.6803 | -795.0 | -739.8 | |
| 0.00 | 1.11 | 0.00 | 0.73 | 7.91 | 44.53 | 40.29 | 282.85 | 0.6592 | -653.0 | -511.4 | |
| 0.00 | 1.02 | 0.00 | 0.67 | 7.64 | 44.46 | 40.22 | 282.46 | 0.6577 | -590.0 | -437.1 | |
| 0.77 | 3.92 | 0.49 | 2.52 | 7.63 | 43.15 | 38.90 | 282.80 | 0.6406 | 751.9 | 697.7 | |
| 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. | |