| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 14.90 | 0.00 | 8.00 | -16.22 | 201.95 | 18.15 | 233.01 | 0.3811 | -418.7 | -236.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 17:00:34 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 | 1.15 | 0.00 | 0.64 | -13.38 | 209.20 | 25.40 | 250.05 | 0.4457 | 788.0 | 682.9 | |
| 0.00 | 3.46 | 0.00 | 1.91 | -13.72 | 209.06 | 25.26 | 249.24 | 0.4452 | 757.0 | 660.1 | |
| 0.00 | 1.95 | 0.00 | 1.06 | -11.89 | 207.45 | 23.65 | 252.39 | 0.4136 | -600.0 | -581.8 | |
| 0.00 | 0.89 | 0.00 | 0.48 | -12.25 | 207.48 | 23.68 | 251.56 | 0.4155 | -674.0 | -496.2 | |
| 0.00 | 1.95 | 0.00 | 1.04 | -15.69 | 203.87 | 20.07 | 240.35 | 0.3818 | -845.0 | -754.1 | |
| 0.00 | 1.33 | 0.00 | 0.71 | -24.30 | 194.38 | 10.58 | 206.94 | 0.3709 | -798.0 | -661.3 | |
| 0.00 | 1.06 | 0.00 | 0.56 | -21.78 | 193.00 | 9.20 | 207.34 | 0.3247 | -586.0 | -572.4 | |
| 0.00 | 1.51 | 0.00 | 0.78 | -18.54 | 192.56 | 8.76 | 211.83 | 0.2748 | -857.0 | -627.9 | |
| 0.00 | 1.60 | 0.00 | 0.82 | -19.85 | 188.53 | 4.73 | 196.98 | 0.2667 | -953.0 | -813.6 | |
| 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. | |