| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 25.34 | 47.55 | 18.71 | 34.34 | 18.79 | 358.86 | -46.18 | 70.40 | 0.7219 | -512.8 | -541.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-23 00:59:09 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 |
| 5.48 | 22.47 | 3.73 | 15.26 | 19.02 | 2.33 | -42.71 | 69.54 | 0.6867 | -856.3 | -687.2 | |
| 0.81 | -1.00 | 0.55 | -1.00 | 18.80 | 2.36 | -42.68 | 69.84 | 0.6859 | -1084.0 | 999999 | |
| 0.00 | 1.35 | 0.00 | 0.91 | 17.45 | 2.63 | -42.40 | 71.74 | 0.6797 | -508.0 | -437.6 | |
| 2.88 | -1.00 | 1.96 | -1.00 | 18.69 | 2.13 | -42.91 | 70.06 | 0.6883 | -735.6 | 999999 | |
| 11.77 | 16.36 | 8.10 | 11.27 | 18.63 | 1.40 | -43.64 | 70.31 | 0.6968 | -785.9 | -540.6 | |
| 0.00 | 1.44 | 0.00 | 1.01 | 17.56 | 0.09 | -44.95 | 72.10 | 0.7101 | -530.0 | -438.8 | |
| 4.40 | 5.93 | 4.37 | 5.89 | 19.23 | 344.37 | -60.67 | 71.79 | 0.8686 | 461.0 | 190.4 | |
| 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. | |