| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.27 | 0.00 | 5.57 | -22.29 | 167.72 | -46.89 | 116.86 | 0.7541 | -355.3 | -232.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-18 09:00:34 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 | 2.04 | 0.00 | 1.26 | -30.55 | 185.85 | -28.76 | 136.45 | 0.6036 | 173.0 | 281.0 | |
| 0.00 | 0.89 | 0.00 | 0.65 | -26.32 | 169.89 | -44.72 | 121.22 | 0.7398 | -595.0 | -471.5 | |
| 0.00 | 1.15 | 0.00 | 0.85 | -17.81 | 167.34 | -47.27 | 109.25 | 0.7432 | -332.0 | -372.4 | |
| 0.00 | 0.97 | 0.00 | 0.80 | -18.75 | 162.11 | -52.50 | 109.53 | 0.7993 | -568.0 | -509.6 | |
| 0.00 | 1.51 | 0.00 | 1.39 | -23.09 | 157.60 | -57.01 | 114.02 | 0.8468 | -268.0 | -235.9 | |
| 0.00 | 0.71 | 0.00 | 0.62 | -10.19 | 159.05 | -55.56 | 98.71 | 0.8233 | -542.0 | -475.6 | |
| 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. | |