| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.08 | 10.53 | 0.72 | 6.88 | 9.85 | 180.21 | 39.06 | 287.68 | 0.6541 | -231.1 | -268.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-21 04:00:38 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 |
| 0.00 | 0.81 | 0.00 | 0.55 | 10.02 | 182.93 | 41.79 | 286.89 | 0.6881 | -595.0 | -444.9 | |
| 0.00 | 1.62 | 0.00 | 1.08 | 8.94 | 181.91 | 40.76 | 285.69 | 0.6722 | -754.0 | -668.9 | |
| 1.08 | 2.07 | 0.72 | 1.38 | 9.16 | 181.77 | 40.63 | 286.05 | 0.6712 | -736.2 | -661.4 | |
| 0.00 | 1.26 | 0.00 | 0.82 | 9.30 | 180.03 | 38.88 | 286.89 | 0.6497 | -709.0 | -612.1 | |
| 0.00 | 1.53 | 0.00 | 0.99 | 8.99 | 179.95 | 38.80 | 286.45 | 0.6477 | -388.0 | -350.2 | |
| 0.00 | 1.17 | 0.00 | 0.74 | 8.43 | 178.05 | 36.90 | 286.31 | 0.6211 | 472.0 | 385.0 | |
| 0.00 | 1.35 | 0.00 | 0.87 | 13.98 | 178.15 | 37.01 | 294.66 | 0.6450 | 151.0 | 163.5 | |
| 0.00 | 0.72 | 0.00 | 0.45 | 11.12 | 176.41 | 35.26 | 291.26 | 0.6101 | 569.0 | 379.4 | |
| 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. | |