| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.22 | 21.58 | 2.79 | 11.72 | -17.07 | 156.38 | -19.51 | 129.14 | 0.4121 | 596.5 | -31.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-18 13:00:38 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 |
| 1.80 | 12.23 | 0.96 | 6.55 | -16.80 | 158.62 | -17.28 | 131.59 | 0.3819 | 1190.8 | 761.9 | |
| 0.00 | 0.36 | 0.00 | 0.19 | -17.46 | 158.52 | -17.38 | 132.77 | 0.3898 | 734.0 | 763.8 | |
| 3.42 | -1.00 | 1.83 | -1.00 | -16.80 | 158.42 | -17.48 | 131.28 | 0.3843 | 1041.2 | 999999 | |
| 0.00 | 1.08 | 0.00 | 0.58 | -16.37 | 157.19 | -18.70 | 128.59 | 0.3953 | 747.0 | 679.7 | |
| 0.00 | 7.91 | 0.00 | 4.40 | -17.54 | 153.05 | -22.84 | 125.71 | 0.4578 | -1076.0 | -837.0 | |
| 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. | |