| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.72 | 179.11 | 14.13 | 106.62 | -26.63 | 36.95 | 9.52 | 195.46 | 0.5561 | 1009.7 | 372.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-17 21:59:01 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 |
| 23.72 | 169.27 | 14.13 | 100.88 | -26.69 | 37.23 | 9.80 | 195.89 | 0.5578 | 1218.7 | 362.8 | |
| 0.00 | 0.78 | 0.00 | 0.47 | -28.33 | 34.67 | 7.24 | 191.23 | 0.5720 | 608.0 | 520.4 | |
| 0.00 | 1.05 | 0.00 | 0.59 | -22.35 | 33.86 | 6.43 | 192.44 | 0.4829 | 672.0 | 625.2 | |
| 0.00 | 1.74 | 0.00 | 0.99 | -22.52 | 33.74 | 6.31 | 192.13 | 0.4850 | 773.0 | 659.2 | |
| 0.00 | 0.96 | 0.00 | 0.57 | -27.28 | 33.89 | 6.46 | 190.42 | 0.5550 | 647.0 | 501.9 | |
| 0.00 | 2.70 | 0.00 | 1.55 | -24.34 | 30.74 | 3.31 | 185.99 | 0.5052 | 655.0 | 442.3 | |
| 0.00 | 0.78 | 0.00 | 0.47 | -29.19 | 30.16 | 2.73 | 184.16 | 0.5757 | 565.0 | 428.1 | |
| 0.00 | 1.05 | 0.00 | 0.63 | -28.61 | 29.87 | 2.44 | 183.80 | 0.5670 | 493.0 | 471.8 | |
| 0.00 | 0.78 | 0.00 | 0.47 | -28.14 | 29.56 | 2.13 | 183.36 | 0.5599 | 711.0 | 568.2 | |
| 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. | |