| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.11 | 16.79 | 5.79 | 18.97 | -18.89 | 78.95 | 62.61 | 249.16 | 0.9007 | 238.6 | 139.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-12 08:58:55 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 |
| 1.62 | 3.07 | 1.87 | 3.56 | -18.18 | 79.80 | 63.47 | 250.08 | 0.9059 | 481.6 | 317.4 | |
| 0.00 | 0.85 | 0.00 | 1.00 | -18.96 | 79.91 | 63.57 | 249.24 | 0.9075 | 366.0 | 369.7 | |
| 1.62 | 3.41 | 1.85 | 3.88 | -18.34 | 79.28 | 62.94 | 249.82 | 0.9025 | 512.3 | 552.6 | |
| 0.00 | 1.02 | 0.00 | 1.19 | -19.11 | 79.81 | 63.47 | 249.06 | 0.9070 | 352.0 | 339.4 | |
| 0.00 | 0.94 | 0.00 | 1.05 | -18.40 | 78.91 | 62.58 | 249.69 | 0.8999 | 458.0 | 398.7 | |
| 0.00 | 0.60 | 0.00 | 0.66 | -18.50 | 78.63 | 62.30 | 249.54 | 0.8980 | 427.0 | 396.3 | |
| 0.85 | 2.21 | 0.96 | 2.49 | -19.21 | 78.76 | 62.43 | 248.78 | 0.8998 | -194.8 | -204.4 | |
| 0.00 | 2.73 | 0.00 | 3.01 | -19.85 | 78.04 | 61.71 | 247.96 | 0.8955 | -444.0 | -273.8 | |
| 1.02 | 1.96 | 1.11 | 2.13 | -19.57 | 77.59 | 61.26 | 248.18 | 0.8918 | -221.8 | -136.9 | |
| 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. | |