| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 34.21 | 232.03 | 18.62 | 126.30 | 16.69 | 168.92 | 21.61 | 301.23 | 0.4144 | -826.4 | -375.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-07-19 01:59:11 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 |
| 34.21 | 225.04 | 18.62 | 122.58 | 16.62 | 169.08 | 21.77 | 300.87 | 0.4158 | -1252.6 | -404.7 | |
| 0.00 | 0.91 | 0.00 | 0.48 | 15.81 | 166.65 | 19.35 | 301.79 | 0.3766 | -807.0 | -612.8 | |
| 0.00 | 0.82 | 0.00 | 0.44 | 20.50 | 166.10 | 18.79 | 312.53 | 0.4112 | 632.0 | 497.8 | |
| 0.00 | 1.27 | 0.00 | 0.68 | 18.99 | 164.53 | 17.22 | 311.85 | 0.3774 | 704.0 | 636.1 | |
| 0.00 | 1.09 | 0.00 | 0.58 | 18.60 | 163.71 | 16.41 | 312.32 | 0.3636 | 828.0 | 622.4 | |
| 0.00 | 1.09 | 0.00 | 0.58 | 18.26 | 163.58 | 16.27 | 311.80 | 0.3585 | 806.0 | 634.4 | |
| 0.00 | 1.81 | 0.00 | 0.96 | 20.27 | 160.56 | 13.25 | 321.56 | 0.3474 | 814.0 | 583.2 | |
| 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. | |