| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 42.46 | 256.47 | 21.57 | 130.36 | 16.49 | 169.14 | 4.73 | 339.11 | 0.2231 | -1163.0 | -421.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-07-17 18:59:11 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 |
| 28.85 | 249.84 | 14.66 | 126.99 | 16.53 | 169.33 | 4.92 | 338.45 | 0.2246 | -1358.9 | -436.9 | |
| 7.89 | -1.00 | 4.01 | -1.00 | 16.12 | 169.22 | 4.81 | 338.17 | 0.2176 | -1423.1 | 999999 | |
| 1.00 | -1.00 | 0.51 | -1.00 | 17.00 | 169.21 | 4.80 | 339.67 | 0.2313 | -756.0 | 999999 | |
| 0.36 | -1.00 | 0.18 | -1.00 | 16.47 | 168.85 | 4.44 | 340.28 | 0.2208 | -1099.5 | 999999 | |
| 1.09 | -1.00 | 0.55 | -1.00 | 16.31 | 168.84 | 4.43 | 340.04 | 0.2183 | -1049.5 | 999999 | |
| 2.18 | -1.00 | 1.11 | -1.00 | 16.84 | 168.85 | 4.45 | 340.82 | 0.2268 | -735.2 | 999999 | |
| 1.09 | -1.00 | 0.55 | -1.00 | 16.34 | 168.75 | 4.34 | 340.48 | 0.2183 | -846.0 | 999999 | |
| 0.00 | 2.09 | 0.00 | 1.06 | 16.04 | 168.33 | 3.92 | 341.78 | 0.2110 | -531.0 | -443.2 | |
| 0.00 | 1.36 | 0.00 | 0.69 | 16.51 | 167.10 | 2.69 | 347.77 | 0.2132 | -863.0 | -628.9 | |
| 0.00 | 3.18 | 0.00 | 1.62 | 17.98 | 163.28 | -1.13 | 4.63 | 0.2342 | 826.0 | 654.4 | |
| 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. | |