| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.05 | 0.00 | 4.34 | 14.27 | 115.09 | 3.12 | 351.36 | 0.3944 | 106.6 | 27.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-29 21:00:31 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 | 1.66 | 0.00 | 0.91 | 12.02 | 128.37 | 16.40 | 318.84 | 0.4214 | -614.0 | -490.7 | |
| 0.00 | 1.31 | 0.00 | 0.70 | 11.19 | 123.35 | 11.38 | 327.55 | 0.3624 | -832.0 | -641.7 | |
| 0.00 | 0.70 | 0.00 | 0.38 | 16.97 | 115.82 | 3.85 | 350.90 | 0.4076 | -698.0 | -538.9 | |
| 0.00 | 0.96 | 0.00 | 0.51 | 13.80 | 110.18 | -1.79 | 4.97 | 0.3525 | 695.0 | 550.2 | |
| 0.00 | 1.05 | 0.00 | 0.56 | 15.57 | 109.33 | -2.65 | 6.70 | 0.3827 | 858.0 | 605.4 | |
| 0.00 | 1.14 | 0.00 | 0.61 | 16.48 | 108.66 | -3.31 | 8.03 | 0.3987 | 722.0 | 547.8 | |
| 0.00 | 1.23 | 0.00 | 0.67 | 16.28 | 102.42 | -9.56 | 22.31 | 0.4217 | 615.0 | 388.2 | |
| 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. | |