| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 13.65 | 0.00 | 7.16 | -18.15 | 77.89 | 5.58 | 196.53 | 0.3278 | 223.4 | 209.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-08 02:58:56 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 | 2.56 | 0.00 | 1.34 | -17.81 | 79.14 | 6.82 | 200.27 | 0.3280 | 920.0 | 822.3 | |
| 0.00 | 2.81 | 0.00 | 1.48 | -18.02 | 78.99 | 6.68 | 199.63 | 0.3305 | 770.0 | 600.5 | |
| 0.00 | 0.94 | 0.00 | 0.49 | -17.75 | 78.92 | 6.60 | 199.74 | 0.3258 | 911.0 | 769.4 | |
| 0.00 | 1.62 | 0.00 | 0.85 | -17.53 | 78.75 | 6.44 | 199.52 | 0.3215 | 883.0 | 783.8 | |
| 0.00 | 0.94 | 0.00 | 0.49 | -17.81 | 78.73 | 6.42 | 199.16 | 0.3257 | 875.0 | 646.5 | |
| 0.00 | 1.11 | 0.00 | 0.58 | -18.52 | 77.26 | 4.94 | 194.40 | 0.3300 | -770.0 | -525.2 | |
| 0.00 | 2.39 | 0.00 | 1.25 | -18.06 | 75.78 | 3.47 | 190.49 | 0.3171 | -1048.0 | -896.6 | |
| 0.00 | 1.28 | 0.00 | 0.68 | -20.21 | 75.04 | 2.73 | 187.35 | 0.3504 | -754.0 | -628.1 | |
| 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. | |