| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 21.86 | 38.84 | 15.06 | 26.34 | 18.77 | 358.41 | -42.25 | 69.50 | 0.6764 | -402.1 | -546.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-23 08:59:09 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 |
| 3.24 | 17.35 | 2.07 | 11.08 | 18.95 | 2.31 | -38.34 | 68.39 | 0.6333 | -877.7 | -781.8 | |
| 3.06 | -1.00 | 1.96 | -1.00 | 18.63 | 2.12 | -38.54 | 68.96 | 0.6348 | -758.5 | 999999 | |
| 11.60 | 13.76 | 7.50 | 8.89 | 18.57 | 1.31 | -39.34 | 69.30 | 0.6447 | -741.9 | -535.3 | |
| 0.00 | 0.99 | 0.00 | 0.65 | 19.22 | 0.45 | -40.20 | 68.56 | 0.6571 | -613.0 | -506.1 | |
| 0.00 | 0.99 | 0.00 | 0.66 | 16.53 | 359.09 | -41.56 | 72.92 | 0.6676 | -294.0 | -289.5 | |
| 0.00 | 0.81 | 0.00 | 0.65 | 20.90 | 348.51 | -52.14 | 68.91 | 0.7928 | 541.0 | 420.0 | |
| 3.96 | 4.94 | 3.53 | 4.41 | 19.07 | 344.03 | -56.62 | 71.68 | 0.8335 | 558.5 | 386.7 | |
| 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. | |