| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 16.34 | 52.02 | 16.25 | 50.58 | -22.78 | 139.53 | -54.12 | 119.80 | 0.8615 | 239.8 | 239.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-07-15 13:59:11 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 |
| 1.63 | 2.45 | 1.52 | 2.28 | -23.40 | 141.65 | -52.00 | 121.24 | 0.8479 | 481.6 | 485.4 | |
| 10.17 | 37.49 | 9.47 | 34.83 | -22.48 | 141.18 | -52.47 | 120.04 | 0.8486 | 678.1 | 419.8 | |
| 0.00 | 0.82 | 0.00 | 0.78 | -22.51 | 140.11 | -53.54 | 119.67 | 0.8571 | 380.0 | 279.0 | |
| 0.00 | 2.36 | 0.00 | 2.45 | -22.55 | 137.01 | -56.63 | 118.61 | 0.8805 | -595.0 | -526.2 | |
| 0.00 | 1.18 | 0.00 | 1.31 | -23.61 | 135.24 | -58.41 | 119.17 | 0.8957 | -513.0 | -463.8 | |
| 4.54 | 7.72 | 5.26 | 8.93 | -23.78 | 133.81 | -59.84 | 118.90 | 0.9056 | -344.0 | -308.9 | |
| 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. | |