| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.49 | 13.23 | 7.02 | 17.21 | -17.97 | 217.10 | 67.11 | 251.39 | 0.9259 | -86.7 | 137.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 12:00:38 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 | 1.35 | 0.00 | 1.97 | -18.71 | 219.73 | 69.74 | 250.84 | 0.9422 | 208.0 | 210.7 | |
| 0.81 | 2.97 | 1.12 | 4.11 | -17.91 | 218.58 | 68.59 | 251.59 | 0.9352 | 347.4 | 242.5 | |
| 0.00 | 0.27 | 0.00 | 0.38 | -18.23 | 218.67 | 68.68 | 251.26 | 0.9359 | 161.0 | 93.7 | |
| 4.68 | 6.75 | 5.90 | 8.51 | -18.21 | 216.29 | 66.30 | 251.05 | 0.9213 | -312.0 | -79.9 | |
| 0.00 | 1.89 | 0.00 | 2.24 | -16.47 | 214.86 | 64.87 | 252.79 | 0.9106 | 214.0 | 194.6 | |
| 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. | |