| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 12.94 | 31.29 | 12.75 | 31.27 | 15.45 | 178.44 | 57.55 | 290.52 | 0.8700 | -2.7 | -203.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-30 10:59:07 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 | 1.87 | 0.00 | 1.99 | 15.36 | 180.56 | 59.67 | 289.84 | 0.8867 | -319.0 | -203.4 | |
| 1.16 | 2.23 | 1.21 | 2.33 | 15.11 | 180.07 | 59.18 | 289.68 | 0.8825 | -535.8 | -531.8 | |
| 0.45 | 1.87 | 0.47 | 1.97 | 15.37 | 180.19 | 59.30 | 289.94 | 0.8839 | -552.6 | -494.2 | |
| 3.48 | 7.04 | 3.65 | 7.36 | 15.61 | 180.06 | 59.17 | 290.25 | 0.8834 | -523.5 | -493.6 | |
| 0.00 | 0.62 | 0.00 | 0.65 | 14.96 | 179.75 | 58.87 | 289.60 | 0.8798 | -589.0 | -608.3 | |
| 0.00 | 0.98 | 0.00 | 1.02 | 15.34 | 179.81 | 58.92 | 290.01 | 0.8810 | -622.0 | -588.7 | |
| 0.00 | 1.96 | 0.00 | 2.01 | 15.04 | 179.49 | 58.60 | 289.76 | 0.8778 | -546.0 | -494.3 | |
| 0.00 | 2.05 | 0.00 | 2.03 | 15.02 | 178.23 | 57.35 | 290.07 | 0.8678 | 376.0 | 250.7 | |
| 6.60 | 7.58 | 6.23 | 7.16 | 15.25 | 176.44 | 55.56 | 290.84 | 0.8534 | 490.3 | -174.2 | |
| 1.25 | 1.43 | 1.19 | 1.36 | 16.40 | 176.42 | 55.54 | 292.14 | 0.8560 | 368.5 | 255.0 | |
| 0.00 | 0.45 | 0.00 | 0.42 | 15.96 | 176.01 | 55.13 | 291.77 | 0.8514 | 496.0 | 396.6 | |
| 0.00 | 0.98 | 0.00 | 0.92 | 15.79 | 175.89 | 55.00 | 291.62 | 0.8500 | 530.0 | 471.9 | |
| 0.00 | 2.23 | 0.00 | 2.05 | 16.25 | 175.09 | 54.21 | 292.39 | 0.8443 | 494.0 | 392.1 | |
| 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. | |