| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.40 | 140.69 | 13.93 | 95.95 | -26.91 | 36.89 | 29.78 | 220.13 | 0.6896 | 969.3 | 317.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-19 10:59:01 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 |
| 20.40 | 135.47 | 13.93 | 92.54 | -26.94 | 37.04 | 29.93 | 220.24 | 0.6910 | 1059.8 | 306.6 | |
| 0.00 | 1.13 | 0.00 | 0.71 | -22.56 | 32.62 | 25.51 | 220.70 | 0.6122 | 708.0 | 530.9 | |
| 0.00 | 1.22 | 0.00 | 0.81 | -27.08 | 33.35 | 26.24 | 216.59 | 0.6628 | 688.0 | 550.1 | |
| 0.00 | 0.78 | 0.00 | 0.52 | -27.39 | 33.28 | 26.17 | 216.20 | 0.6653 | 517.0 | 422.9 | |
| 0.00 | 2.09 | 0.00 | 1.37 | -27.15 | 32.55 | 25.44 | 215.70 | 0.6573 | 704.0 | 631.5 | |
| 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. | |