| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 12.77 | 36.91 | 12.04 | 35.02 | 7.71 | 265.76 | -58.61 | 82.44 | 0.8552 | -338.1 | -204.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-18 23:58:57 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 |
| 0.51 | 1.46 | 0.48 | 1.37 | 8.53 | 266.17 | -58.21 | 81.47 | 0.8520 | 568.8 | 476.6 | |
| 10.30 | 28.75 | 9.68 | 27.02 | 7.51 | 266.11 | -58.26 | 82.67 | 0.8522 | -794.2 | -321.9 | |
| 0.51 | 1.72 | 0.49 | 1.63 | 8.88 | 265.79 | -58.58 | 81.09 | 0.8556 | 528.8 | 496.7 | |
| 0.00 | 1.72 | 0.00 | 1.64 | 8.87 | 265.56 | -58.81 | 81.11 | 0.8576 | 208.0 | 229.0 | |
| 0.51 | -2.00 | 0.49 | -2.00 | 7.44 | 265.84 | -58.53 | 82.77 | 0.8546 | 117.8 | 999999 | |
| 0.94 | 1.12 | 0.90 | 1.07 | 8.66 | 265.50 | -58.87 | 81.36 | 0.8581 | 411.1 | 373.0 | |
| 0.00 | 0.94 | 0.00 | 0.91 | 8.73 | 265.18 | -59.19 | 81.28 | 0.8609 | -324.0 | -302.9 | |
| 0.00 | 1.20 | 0.00 | 1.38 | 6.86 | 259.84 | -64.53 | 83.56 | 0.9039 | -471.0 | -310.6 | |
| 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. | |