SDO HMI 2011-05-31 17:59:10 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 |
| 29.16 | 71.79 | 19.80 | 48.57 | -17.90 | 26.77 | -40.26 | 115.82 | 0.6856 | 752.2 | 515.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-31 17:59:10 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 |
| 1.99 | 11.38 | 1.35 | 7.75 | -18.24 | 26.82 | -40.22 | 116.32 | 0.6865 | 713.8 | 542.8 | |
| 16.61 | 55.35 | 11.25 | 37.35 | -17.83 | 26.89 | -40.14 | 115.78 | 0.6839 | 887.2 | 522.6 | |
| 7.49 | -1.00 | 5.11 | -1.00 | -18.30 | 26.55 | -40.49 | 116.28 | 0.6898 | 580.8 | 999999 | |
| 1.72 | -2.00 | 1.16 | -2.00 | -17.57 | 26.63 | -40.41 | 115.31 | 0.6859 | 557.8 | 999999 | |
| 0.00 | 2.80 | 0.00 | 1.92 | -18.08 | 26.15 | -40.89 | 115.79 | 0.6934 | 570.0 | 443.1 | |
| 1.35 | 2.26 | 0.93 | 1.55 | -17.88 | 25.99 | -41.05 | 115.46 | 0.6944 | 555.5 | 404.9 | |
| 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. | |