SDO HMI 2014-05-20 00:00:38 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.73 | 26.00 | 18.98 | 57.42 | -11.49 | 79.32 | -77.25 | 101.31 | 0.9753 | 154.1 | -71.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 00:00:38 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 |
| 3.06 | 6.57 | 5.83 | 12.51 | -11.97 | 81.56 | -75.02 | 101.82 | 0.9666 | 334.6 | 247.3 | |
| 2.07 | 3.78 | 4.13 | 7.52 | -12.32 | 80.89 | -75.69 | 102.17 | 0.9695 | 241.9 | 108.1 | |
| 0.00 | 2.16 | 0.00 | 4.17 | -11.49 | 81.33 | -75.25 | 101.33 | 0.9676 | 71.0 | 48.5 | |
| 0.00 | 0.72 | 0.00 | 1.50 | -12.42 | 80.14 | -76.43 | 102.26 | 0.9726 | -241.0 | -264.2 | |
| 3.60 | 12.77 | 9.02 | 31.72 | -11.06 | 77.76 | -78.81 | 100.85 | 0.9812 | 50.3 | -201.2 | |
| 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. | |