| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 12.56 | 0.00 | 6.85 | -15.83 | 199.08 | -21.02 | 120.35 | 0.3938 | -618.2 | -509.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-17 23:00:34 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 | 1.68 | 0.00 | 0.86 | -13.86 | 209.79 | -10.32 | 130.50 | 0.2297 | -836.0 | -504.2 | |
| 0.00 | 1.06 | 0.00 | 0.55 | -14.27 | 207.30 | -12.81 | 126.04 | 0.2669 | 848.0 | 713.8 | |
| 0.00 | 1.15 | 0.00 | 0.59 | -11.00 | 206.43 | -13.68 | 113.33 | 0.2539 | -730.0 | -596.4 | |
| 0.00 | 0.97 | 0.00 | 0.52 | -18.05 | 202.71 | -17.40 | 128.11 | 0.3629 | -928.0 | -757.6 | |
| 0.00 | 1.68 | 0.00 | 0.90 | -18.22 | 202.32 | -17.78 | 127.94 | 0.3694 | -823.0 | -673.0 | |
| 0.00 | 1.06 | 0.00 | 0.57 | -17.00 | 201.62 | -18.48 | 124.15 | 0.3679 | -829.0 | -604.8 | |
| 0.00 | 1.86 | 0.00 | 1.05 | -15.65 | 192.64 | -27.46 | 112.97 | 0.4842 | -904.0 | -726.8 | |
| 0.00 | 1.95 | 0.00 | 1.10 | -15.61 | 192.30 | -27.81 | 112.67 | 0.4889 | -701.0 | -533.5 | |
| 0.00 | 1.15 | 0.00 | 0.71 | -18.49 | 184.86 | -35.24 | 113.92 | 0.6009 | -661.0 | -559.2 | |
| 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. | |