SDO HMI 2011-02-11 20:58:56 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 |
| 6.41 | 25.06 | 4.09 | 16.13 | 19.30 | 33.40 | -30.57 | 48.61 | 0.6418 | -12.6 | -259.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-11 20:58:56 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 |
| 5.30 | 9.49 | 3.37 | 6.03 | 19.30 | 34.75 | -29.22 | 47.38 | 0.6284 | -920.0 | -724.6 | |
| 1.11 | 6.59 | 0.72 | 4.24 | 19.23 | 33.32 | -30.66 | 48.81 | 0.6421 | -588.3 | -576.2 | |
| 0.00 | 3.93 | 0.00 | 2.55 | 19.45 | 33.01 | -30.96 | 48.81 | 0.6469 | -472.0 | -442.3 | |
| 0.00 | 1.20 | 0.00 | 0.77 | 18.85 | 32.63 | -31.35 | 49.89 | 0.6460 | 743.0 | 644.3 | |
| 0.00 | 0.51 | 0.00 | 0.33 | 18.93 | 32.43 | -31.55 | 49.97 | 0.6487 | 573.0 | 491.5 | |
| 0.00 | 0.86 | 0.00 | 0.56 | 19.45 | 31.39 | -32.59 | 50.21 | 0.6633 | 584.0 | 567.2 | |
| 0.00 | 0.68 | 0.00 | 0.45 | 18.59 | 31.13 | -32.84 | 51.49 | 0.6592 | 606.0 | 591.4 | |
| 0.00 | 0.94 | 0.00 | 0.63 | 19.95 | 30.37 | -33.61 | 50.45 | 0.6771 | 667.0 | 571.9 | |
| 0.00 | 0.86 | 0.00 | 0.57 | 19.72 | 30.31 | -33.67 | 50.77 | 0.6760 | 683.0 | 602.4 | |
| 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. | |