SDO HMI 2011-12-12 04:58:55 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.86 | 24.37 | 2.72 | 13.65 | 7.56 | 45.32 | 26.81 | 287.34 | 0.4700 | -427.5 | -445.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-12 04:58:55 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 |
| 0.00 | 1.45 | 0.00 | 0.83 | 7.78 | 48.03 | 29.52 | 286.31 | 0.5107 | -517.0 | -412.2 | |
| 0.00 | 2.47 | 0.00 | 1.41 | 7.95 | 47.19 | 28.68 | 287.07 | 0.4992 | -830.0 | -593.8 | |
| 0.00 | 2.98 | 0.00 | 1.69 | 8.07 | 46.52 | 28.01 | 287.65 | 0.4900 | -537.0 | -575.1 | |
| 0.00 | 1.28 | 0.00 | 0.72 | 7.08 | 46.45 | 27.94 | 285.73 | 0.4850 | -644.0 | -542.3 | |
| 0.00 | 0.94 | 0.00 | 0.53 | 7.26 | 46.43 | 27.92 | 286.10 | 0.4854 | -787.0 | -704.4 | |
| 0.00 | 2.56 | 0.00 | 1.45 | 8.16 | 46.26 | 27.74 | 287.98 | 0.4865 | -890.0 | -722.0 | |
| 4.86 | 6.13 | 2.72 | 3.43 | 7.26 | 45.22 | 26.71 | 286.73 | 0.4675 | -983.0 | -760.5 | |
| 0.00 | 3.41 | 0.00 | 1.89 | 7.49 | 44.14 | 25.63 | 287.86 | 0.4525 | -970.0 | -798.0 | |
| 0.00 | 1.11 | 0.00 | 0.60 | 7.21 | 41.74 | 23.22 | 288.85 | 0.4152 | 897.0 | 748.6 | |
| 0.00 | 1.02 | 0.00 | 0.55 | 6.29 | 40.85 | 22.34 | 287.28 | 0.3974 | 679.0 | 584.2 | |
| 0.00 | 1.02 | 0.00 | 0.55 | 7.66 | 40.73 | 22.22 | 290.65 | 0.4022 | 835.0 | 671.2 | |
| 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. | |