| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 11.56 | 0.00 | 6.40 | 17.58 | 89.04 | -10.84 | 23.58 | 0.4484 | -280.5 | -249.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 19:00:31 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 | 1.58 | 0.00 | 0.87 | 17.64 | 91.09 | -8.80 | 19.59 | 0.4366 | -772.0 | -657.9 | |
| 0.00 | 1.75 | 0.00 | 0.96 | 17.41 | 90.91 | -8.98 | 20.14 | 0.4342 | -890.0 | -768.0 | |
| 0.00 | 1.84 | 0.00 | 1.01 | 17.65 | 90.29 | -9.59 | 21.19 | 0.4411 | -794.0 | -646.2 | |
| 0.00 | 2.54 | 0.00 | 1.40 | 17.33 | 89.96 | -9.93 | 22.15 | 0.4384 | -662.0 | -624.4 | |
| 0.00 | 1.05 | 0.00 | 0.58 | 16.22 | 87.32 | -12.57 | 28.46 | 0.4405 | 815.0 | 679.7 | |
| 0.00 | 2.80 | 0.00 | 1.58 | 18.33 | 85.81 | -14.08 | 28.88 | 0.4800 | 620.0 | 538.0 | |
| 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. | |