| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.93 | 22.64 | 8.54 | 22.19 | 22.60 | 135.70 | -59.70 | 67.53 | 0.8643 | -310.9 | -125.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-11 15:59:10 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 |
| 1.35 | 3.34 | 1.28 | 3.16 | 23.16 | 137.09 | -58.32 | 66.71 | 0.8538 | -529.7 | -522.3 | |
| 7.58 | 9.65 | 7.26 | 9.24 | 22.95 | 136.60 | -58.81 | 67.02 | 0.8577 | -470.0 | -310.8 | |
| 0.00 | 2.71 | 0.00 | 2.62 | 22.75 | 136.16 | -59.25 | 67.30 | 0.8611 | -375.0 | -231.9 | |
| 0.00 | 0.81 | 0.00 | 0.79 | 22.49 | 135.82 | -59.59 | 67.64 | 0.8636 | -321.0 | -251.8 | |
| 0.00 | 1.44 | 0.00 | 1.32 | 15.87 | 137.76 | -57.65 | 75.24 | 0.8424 | -567.0 | -420.6 | |
| 0.00 | 1.71 | 0.00 | 1.84 | 23.75 | 132.62 | -62.78 | 66.54 | 0.8892 | 371.0 | 278.4 | |
| 0.00 | 0.81 | 0.00 | 0.88 | 23.39 | 132.27 | -63.13 | 66.97 | 0.8915 | 148.0 | 146.2 | |
| 0.00 | 2.17 | 0.00 | 2.34 | 22.93 | 132.29 | -63.11 | 67.48 | 0.8911 | 314.0 | 259.8 | |
| 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. | |