| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 50.46 | 268.48 | 33.38 | 177.52 | -18.41 | 352.21 | 38.48 | 242.97 | 0.6651 | 894.0 | 358.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-17 02:58:55 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 | 0.94 | 0.00 | 0.64 | -19.13 | 354.55 | 40.82 | 243.07 | 0.6951 | -607.0 | -503.6 | |
| 0.00 | 1.45 | 0.00 | 0.99 | -18.95 | 354.29 | 40.56 | 243.20 | 0.6914 | -400.0 | -427.9 | |
| 3.57 | 252.22 | 2.39 | 166.83 | -19.22 | 352.58 | 38.85 | 242.02 | 0.6731 | 489.1 | 363.0 | |
| 44.59 | -3.00 | 29.48 | -3.00 | -18.26 | 352.24 | 38.51 | 243.20 | 0.6648 | 1104.7 | 999999 | |
| 1.87 | 3.91 | 1.23 | 2.58 | -20.11 | 351.11 | 37.38 | 240.00 | 0.6606 | 676.1 | 615.8 | |
| 0.00 | 1.45 | 0.00 | 0.95 | -19.64 | 350.79 | 37.06 | 240.48 | 0.6545 | 769.0 | 636.3 | |
| 0.00 | 1.70 | 0.00 | 1.10 | -18.40 | 350.42 | 36.69 | 242.06 | 0.6441 | 801.0 | 537.5 | |
| 0.43 | 3.15 | 0.28 | 2.07 | -20.52 | 350.91 | 37.18 | 239.32 | 0.6605 | 671.2 | 325.8 | |
| 0.00 | 1.62 | 0.00 | 1.05 | -19.77 | 350.58 | 36.85 | 240.19 | 0.6529 | 823.0 | 668.3 | |
| 0.00 | 1.02 | 0.00 | 0.66 | -19.71 | 350.29 | 36.56 | 240.11 | 0.6492 | 678.0 | 586.5 | |
| 0.00 | 1.02 | 0.00 | 0.65 | -18.47 | 349.63 | 35.90 | 241.52 | 0.6351 | -497.0 | -347.0 | |
| 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. | |