| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 10.82 | 0.00 | 6.06 | -18.28 | 163.85 | -24.35 | 121.10 | 0.4612 | -748.8 | -609.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 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 | 1.24 | 0.00 | 0.66 | -17.55 | 170.56 | -17.64 | 127.08 | 0.3637 | -821.0 | -611.1 | |
| 0.00 | 0.89 | 0.00 | 0.49 | -24.51 | 168.98 | -19.22 | 138.25 | 0.4517 | -706.0 | -540.7 | |
| 0.00 | 1.42 | 0.00 | 0.77 | -18.15 | 167.85 | -20.35 | 124.83 | 0.4042 | -852.0 | -774.1 | |
| 0.00 | 0.71 | 0.00 | 0.39 | -9.37 | 164.07 | -24.13 | 101.36 | 0.4131 | -774.0 | -559.0 | |
| 0.00 | 1.24 | 0.00 | 0.72 | -22.18 | 161.59 | -26.61 | 126.00 | 0.5147 | -742.0 | -616.4 | |
| 0.00 | 1.33 | 0.00 | 0.75 | -16.74 | 162.19 | -26.00 | 116.50 | 0.4710 | -768.0 | -617.9 | |
| 0.00 | 1.42 | 0.00 | 0.80 | -17.10 | 161.79 | -26.41 | 116.89 | 0.4786 | -896.0 | -729.4 | |
| 0.00 | 1.24 | 0.00 | 0.71 | -18.30 | 160.09 | -28.10 | 117.93 | 0.5083 | -710.0 | -537.0 | |
| 0.00 | 1.33 | 0.00 | 0.77 | -18.64 | 160.03 | -28.17 | 118.51 | 0.5110 | -470.0 | -441.1 | |
| 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. | |