| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.02 | 0.00 | 4.67 | -24.36 | 115.68 | 39.42 | 240.25 | 0.6684 | -79.0 | -1.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 14:00:32 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 | 1.32 | 0.00 | 0.90 | -23.75 | 117.94 | 41.68 | 242.07 | 0.6912 | 765.0 | 540.1 | |
| 0.00 | 1.32 | 0.00 | 0.89 | -23.96 | 116.88 | 40.62 | 241.37 | 0.6802 | 660.0 | 517.0 | |
| 0.00 | 0.61 | 0.00 | 0.41 | -24.14 | 116.91 | 40.65 | 241.12 | 0.6812 | 605.0 | 517.3 | |
| 0.00 | 0.61 | 0.00 | 0.41 | -24.22 | 115.78 | 39.52 | 240.54 | 0.6688 | -636.0 | -484.1 | |
| 0.00 | 0.79 | 0.00 | 0.52 | -24.22 | 115.31 | 39.05 | 240.33 | 0.6635 | -667.0 | -451.3 | |
| 0.00 | 1.23 | 0.00 | 0.80 | -24.38 | 113.90 | 37.64 | 239.45 | 0.6482 | -619.0 | -418.1 | |
| 0.00 | 1.14 | 0.00 | 0.74 | -25.85 | 112.96 | 36.70 | 236.85 | 0.6447 | -661.0 | -540.4 | |
| 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. | |