| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 18.52 | 30.97 | 19.99 | 33.68 | -16.70 | 46.03 | -61.45 | 109.04 | 0.8919 | 189.8 | 15.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-05 10:58:56 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 |
| 10.58 | 13.74 | 11.10 | 14.42 | -17.08 | 47.24 | -60.24 | 109.67 | 0.8833 | 523.7 | 237.0 | |
| 0.00 | 0.85 | 0.00 | 0.93 | -17.55 | 46.20 | -61.28 | 110.01 | 0.8917 | 315.0 | 232.7 | |
| 0.94 | 2.05 | 1.04 | 2.27 | -17.62 | 45.57 | -61.91 | 109.97 | 0.8965 | 217.5 | 106.2 | |
| 1.54 | 4.52 | 1.72 | 5.06 | -17.28 | 45.18 | -62.31 | 109.53 | 0.8989 | 179.8 | 40.6 | |
| 0.00 | 1.28 | 0.00 | 1.42 | -16.29 | 45.21 | -62.27 | 108.44 | 0.8975 | -267.0 | -263.5 | |
| 5.46 | 8.53 | 6.13 | 9.58 | -15.58 | 44.87 | -62.61 | 107.61 | 0.8992 | -362.6 | -196.2 | |
| 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. | |