| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.58 | 22.65 | 5.33 | 14.60 | 19.80 | 241.45 | 38.35 | 293.71 | 0.6390 | 236.3 | -27.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-11 01:59:10 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 | 1.26 | 0.00 | 0.89 | 20.15 | 247.29 | 44.19 | 292.20 | 0.7091 | -642.0 | -539.5 | |
| 0.00 | 1.90 | 0.00 | 1.29 | 17.31 | 246.19 | 43.09 | 288.46 | 0.6899 | -725.0 | -606.1 | |
| 0.00 | 2.44 | 0.00 | 1.68 | 18.51 | 246.51 | 43.41 | 290.09 | 0.6963 | -753.0 | -543.7 | |
| 0.45 | 1.17 | 0.30 | 0.78 | 18.47 | 244.50 | 41.40 | 290.56 | 0.6722 | -461.4 | -415.1 | |
| 0.00 | 1.08 | 0.00 | 0.71 | 18.97 | 243.54 | 40.44 | 291.58 | 0.6619 | -532.0 | -491.0 | |
| 0.00 | 1.99 | 0.00 | 1.27 | 21.46 | 240.40 | 37.30 | 296.47 | 0.6323 | 683.0 | 563.5 | |
| 0.00 | 1.17 | 0.00 | 0.75 | 22.27 | 239.78 | 36.68 | 297.97 | 0.6282 | 303.0 | 338.3 | |
| 5.24 | 6.86 | 3.24 | 4.25 | 19.55 | 238.62 | 35.52 | 294.27 | 0.6028 | 887.0 | 774.6 | |
| 0.00 | 1.08 | 0.00 | 0.68 | 22.13 | 238.97 | 35.87 | 298.15 | 0.6178 | 666.0 | 554.2 | |
| 2.89 | 3.25 | 1.79 | 2.02 | 20.80 | 238.31 | 35.21 | 296.40 | 0.6039 | 783.0 | 749.2 | |
| 0.00 | 0.45 | 0.00 | 0.28 | 20.57 | 238.01 | 34.91 | 296.17 | 0.5992 | 711.0 | 636.4 | |
| 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. | |