| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.69 | 11.91 | 2.22 | 9.80 | -18.02 | 157.07 | -47.22 | 119.06 | 0.8007 | -39.5 | -160.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-02 06:00:37 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 |
| 0.36 | 1.70 | 0.28 | 1.35 | -17.63 | 158.70 | -45.59 | 119.43 | 0.7839 | 629.0 | 507.8 | |
| 0.00 | 0.36 | 0.00 | 0.29 | -17.79 | 158.38 | -45.92 | 119.46 | 0.7877 | 448.0 | 455.5 | |
| 0.00 | 0.63 | 0.00 | 0.51 | -18.18 | 157.36 | -46.93 | 119.40 | 0.7989 | -246.0 | -217.9 | |
| 0.00 | 1.61 | 0.00 | 1.30 | -17.15 | 157.48 | -46.81 | 118.27 | 0.7932 | 651.0 | 424.2 | |
| 0.00 | 0.63 | 0.00 | 0.52 | -18.75 | 156.68 | -47.61 | 119.70 | 0.8074 | -538.0 | -450.6 | |
| 2.33 | 6.98 | 1.94 | 5.83 | -18.23 | 156.54 | -47.75 | 119.05 | 0.8065 | -724.5 | -538.1 | |
| 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. | |