| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 34.82 | 202.28 | 22.91 | 132.92 | -24.62 | 190.48 | 35.56 | 233.65 | 0.6588 | 761.0 | 339.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 03:00:38 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 |
| 34.19 | 197.15 | 22.50 | 129.68 | -24.60 | 190.63 | 35.71 | 233.77 | 0.6602 | 1063.4 | 364.4 | |
| 0.00 | 1.17 | 0.00 | 0.73 | -19.64 | 188.99 | 34.06 | 239.79 | 0.6127 | -574.0 | -427.5 | |
| 0.63 | -1.00 | 0.41 | -1.00 | -24.25 | 189.70 | 34.78 | 233.63 | 0.6482 | 767.0 | 999999 | |
| 0.00 | 1.17 | 0.00 | 0.74 | -26.37 | 185.75 | 30.83 | 227.84 | 0.6216 | -679.0 | -589.5 | |
| 0.00 | 0.81 | 0.00 | 0.51 | -27.35 | 185.57 | 30.64 | 226.40 | 0.6274 | -551.0 | -456.4 | |
| 0.00 | 1.35 | 0.00 | 0.86 | -28.41 | 184.86 | 29.94 | 224.45 | 0.6291 | -486.0 | -369.8 | |
| 0.00 | 0.63 | 0.00 | 0.40 | -28.62 | 184.21 | 29.29 | 223.62 | 0.6247 | -717.0 | -568.0 | |
| 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. | |