| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.62 | 0.00 | 2.88 | -13.11 | 84.87 | 13.03 | 240.43 | 0.2529 | 523.2 | 395.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 22:00:32 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 | 0.69 | -12.69 | 90.56 | 18.72 | 250.08 | 0.3344 | 798.0 | 642.3 | |
| 0.00 | 0.70 | 0.00 | 0.36 | -11.76 | 85.34 | 13.49 | 247.52 | 0.2483 | 726.0 | 596.4 | |
| 0.00 | 1.23 | 0.00 | 0.62 | -11.95 | 83.87 | 12.02 | 244.53 | 0.2268 | 828.0 | 613.9 | |
| 0.00 | 1.23 | 0.00 | 0.63 | -14.25 | 83.51 | 11.66 | 235.07 | 0.2400 | 844.0 | 590.4 | |
| 0.00 | 1.14 | 0.00 | 0.58 | -14.43 | 80.38 | 8.53 | 225.98 | 0.2007 | -580.0 | -473.7 | |
| 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. | |