| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 12.53 | 39.58 | 14.09 | 45.10 | 7.87 | 265.60 | -64.29 | 82.45 | 0.9020 | -265.3 | -21.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-18 13:58:57 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 |
| 2.32 | 7.90 | 2.62 | 9.01 | 8.80 | 265.72 | -64.17 | 81.41 | 0.9014 | 415.4 | 408.5 | |
| 8.84 | 28.15 | 9.91 | 31.62 | 7.59 | 266.02 | -63.88 | 82.76 | 0.8990 | -515.2 | -106.7 | |
| 1.37 | -2.00 | 1.56 | -2.00 | 7.57 | 265.67 | -64.22 | 82.78 | 0.9016 | 193.9 | 999999 | |
| 0.00 | 0.69 | 0.00 | 0.81 | 9.34 | 264.83 | -65.06 | 80.85 | 0.9081 | -248.0 | -236.9 | |
| 0.00 | 0.69 | 0.00 | 0.81 | 8.81 | 264.44 | -65.46 | 81.44 | 0.9108 | -217.0 | -233.2 | |
| 0.00 | 1.12 | 0.00 | 1.36 | 7.74 | 263.83 | -66.07 | 82.63 | 0.9150 | -340.0 | -302.8 | |
| 0.00 | 1.03 | 0.00 | 1.49 | 7.07 | 259.74 | -70.15 | 83.37 | 0.9412 | -280.0 | -229.1 | |
| 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. | |