| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.59 | 0.00 | 5.22 | -10.67 | 15.95 | 35.44 | 261.50 | 0.5774 | 290.9 | 244.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-12 13:00:29 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 | 0.52 | 0.00 | 0.34 | -8.88 | 22.46 | 41.95 | 264.72 | 0.6656 | 476.0 | 369.8 | |
| 0.00 | 1.04 | 0.00 | 0.65 | -10.34 | 18.71 | 38.19 | 262.39 | 0.6159 | 579.0 | 513.8 | |
| 0.00 | 1.04 | 0.00 | 0.65 | -10.03 | 18.43 | 37.92 | 262.89 | 0.6121 | 742.0 | 650.8 | |
| 0.00 | 0.87 | 0.00 | 0.54 | -10.04 | 17.59 | 37.08 | 262.85 | 0.6006 | 447.0 | 441.1 | |
| 0.00 | 1.39 | 0.00 | 0.86 | -10.09 | 17.33 | 36.82 | 262.76 | 0.5970 | 770.0 | 691.7 | |
| 0.00 | 1.13 | 0.00 | 0.68 | -11.58 | 14.92 | 34.40 | 259.98 | 0.5643 | 744.0 | 584.2 | |
| 0.00 | 1.47 | 0.00 | 0.86 | -11.83 | 11.98 | 31.46 | 259.06 | 0.5224 | -640.0 | -495.3 | |
| 0.00 | 1.13 | 0.00 | 0.64 | -11.42 | 10.37 | 29.85 | 259.56 | 0.4981 | -791.0 | -637.3 | |
| 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. | |