| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.47 | 0.00 | 4.86 | -20.13 | 170.08 | -12.74 | 155.43 | 0.5047 | 602.0 | 489.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-03 21:00:36 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 | 1.07 | 0.00 | 0.61 | -20.59 | 172.71 | -10.11 | 160.53 | 0.4950 | 586.0 | 455.5 | |
| 0.00 | 0.98 | 0.00 | 0.56 | -20.87 | 172.30 | -10.53 | 160.00 | 0.5011 | 411.0 | 335.5 | |
| 0.00 | 2.14 | 0.00 | 1.25 | -22.25 | 170.73 | -12.10 | 158.39 | 0.5287 | 724.0 | 490.0 | |
| 0.00 | 0.89 | 0.00 | 0.51 | -19.69 | 170.45 | -12.38 | 155.85 | 0.4952 | 412.0 | 396.7 | |
| 0.00 | 0.98 | 0.00 | 0.57 | -21.89 | 169.02 | -13.80 | 155.39 | 0.5337 | 726.0 | 595.6 | |
| 0.00 | 1.07 | 0.00 | 0.62 | -19.57 | 167.65 | -15.18 | 151.10 | 0.5124 | 592.0 | 483.4 | |
| 0.00 | 1.34 | 0.00 | 0.74 | -15.02 | 167.74 | -15.08 | 146.13 | 0.4528 | 763.0 | 618.3 | |
| 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. | |