| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.75 | 20.16 | 2.18 | 11.72 | 22.79 | 76.87 | -16.63 | 30.24 | 0.5267 | -194.5 | -330.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-13 06:58:55 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 |
| 2.30 | 12.84 | 1.34 | 7.48 | 23.27 | 77.34 | -16.16 | 29.02 | 0.5291 | -898.0 | -743.6 | |
| 1.11 | -1.00 | 0.64 | -1.00 | 23.00 | 77.24 | -16.26 | 29.44 | 0.5265 | -886.8 | 999999 | |
| 0.00 | 1.11 | 0.00 | 0.65 | 24.30 | 76.26 | -17.24 | 29.56 | 0.5497 | -683.0 | -563.2 | |
| 0.00 | 1.36 | 0.00 | 0.80 | 23.39 | 76.35 | -17.15 | 30.34 | 0.5379 | -684.0 | -546.1 | |
| 0.34 | 3.83 | 0.20 | 2.20 | 20.93 | 76.03 | -17.47 | 33.49 | 0.5102 | 991.5 | 689.8 | |
| 0.00 | 1.02 | 0.00 | 0.59 | 22.21 | 75.74 | -17.76 | 32.47 | 0.5282 | 746.0 | 599.1 | |
| 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. | |