| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.91 | 25.84 | 13.79 | 53.15 | 18.92 | 193.34 | 75.42 | 289.39 | 0.9709 | -174.8 | 9.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-04 15:58:56 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 | 0.94 | 0.00 | 1.86 | 15.03 | 192.96 | 75.04 | 285.42 | 0.9690 | -55.0 | 17.9 | |
| 2.64 | 5.12 | 4.53 | 8.76 | 15.76 | 190.62 | 72.71 | 286.32 | 0.9588 | -305.6 | -252.6 | |
| 0.00 | 1.36 | 0.00 | 3.24 | 20.02 | 195.24 | 77.33 | 290.38 | 0.9789 | 169.0 | 184.4 | |
| 0.00 | 1.96 | 0.00 | 4.32 | 19.81 | 194.20 | 76.29 | 290.24 | 0.9752 | -148.0 | -79.7 | |
| 0.00 | 0.26 | 0.00 | 0.59 | 20.18 | 194.78 | 76.87 | 290.58 | 0.9774 | 136.0 | 106.3 | |
| 0.00 | 5.37 | 0.00 | 12.70 | 20.56 | 195.12 | 77.20 | 290.94 | 0.9786 | 161.0 | 184.4 | |
| 4.27 | 7.93 | 9.26 | 17.20 | 20.15 | 194.05 | 76.14 | 290.60 | 0.9747 | -339.6 | -278.4 | |
| 0.00 | 0.94 | 0.00 | 1.45 | 15.37 | 188.61 | 70.69 | 286.08 | 0.9485 | 170.0 | 68.8 | |
| 0.00 | 1.96 | 0.00 | 3.03 | 15.61 | 188.61 | 70.70 | 286.34 | 0.9487 | 462.0 | 278.4 | |
| 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. | |