| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.12 | 17.31 | 5.59 | 11.93 | 23.54 | 134.97 | -42.24 | 62.52 | 0.6961 | -2.4 | -143.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-13 00:59:10 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 |
| 4.33 | 8.21 | 2.88 | 5.46 | 23.38 | 137.35 | -39.86 | 61.90 | 0.6692 | -788.9 | -708.9 | |
| 0.63 | 1.89 | 0.42 | 1.26 | 23.68 | 137.15 | -40.06 | 61.54 | 0.6727 | -676.1 | -570.4 | |
| 0.00 | 0.99 | 0.00 | 0.71 | 24.27 | 132.43 | -44.78 | 62.45 | 0.7265 | 574.0 | 503.1 | |
| 0.00 | 0.99 | 0.00 | 0.71 | 22.92 | 132.46 | -44.75 | 64.26 | 0.7222 | 733.0 | 609.8 | |
| 0.00 | 0.99 | 0.00 | 0.71 | 23.02 | 132.09 | -45.12 | 64.24 | 0.7264 | 492.0 | 336.4 | |
| 3.16 | 4.24 | 2.29 | 3.08 | 23.86 | 131.67 | -45.54 | 63.25 | 0.7333 | 615.9 | 478.9 | |
| 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. | |