| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 12.00 | 0.00 | 8.34 | 7.67 | 345.83 | 44.83 | 273.70 | 0.7021 | -69.0 | 27.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 21:59:08 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 |
| 0.00 | 0.90 | 0.00 | 0.67 | 5.47 | 349.99 | 48.99 | 270.99 | 0.7536 | -546.0 | -466.2 | |
| 0.00 | 0.36 | 0.00 | 0.27 | 4.97 | 349.79 | 48.80 | 270.31 | 0.7519 | -591.0 | -531.0 | |
| 0.00 | 2.15 | 0.00 | 1.53 | 7.00 | 347.18 | 46.18 | 272.81 | 0.7194 | -594.0 | -509.5 | |
| 0.00 | 0.98 | 0.00 | 0.70 | 7.19 | 347.16 | 46.16 | 273.07 | 0.7190 | -685.0 | -568.5 | |
| 0.00 | 1.25 | 0.00 | 0.89 | 9.58 | 347.35 | 46.36 | 276.41 | 0.7203 | -397.0 | -360.4 | |
| 0.00 | 3.49 | 0.00 | 2.37 | 7.93 | 344.57 | 43.58 | 273.97 | 0.6867 | 566.0 | 536.2 | |
| 0.00 | 0.72 | 0.00 | 0.49 | 8.07 | 344.38 | 43.39 | 274.16 | 0.6842 | 487.0 | 480.4 | |
| 0.00 | 1.25 | 0.00 | 0.84 | 8.18 | 343.81 | 42.81 | 274.30 | 0.6769 | 423.0 | 401.9 | |
| 0.00 | 0.90 | 0.00 | 0.58 | 8.72 | 340.93 | 39.94 | 275.03 | 0.6393 | 716.0 | 581.5 | |
| 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. | |