SDO HMI 2011-05-31 19:59:10 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 |
| 25.10 | 70.09 | 16.77 | 46.66 | -17.99 | 26.81 | -39.12 | 116.50 | 0.6728 | 773.7 | 505.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-31 19:59:10 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 |
| 0.00 | 1.81 | 0.00 | 1.20 | -18.12 | 27.41 | -38.52 | 116.97 | 0.6664 | 720.0 | 459.8 | |
| 0.00 | 1.72 | 0.00 | 1.14 | -18.21 | 27.14 | -38.79 | 116.97 | 0.6700 | 286.0 | 317.7 | |
| 16.16 | 62.85 | 10.77 | 41.82 | -17.83 | 26.95 | -38.98 | 116.34 | 0.6704 | 929.1 | 513.7 | |
| 1.99 | -3.00 | 1.33 | -3.00 | -18.21 | 26.81 | -39.12 | 116.81 | 0.6738 | 692.0 | 999999 | |
| 6.95 | -3.00 | 4.67 | -3.00 | -18.27 | 26.54 | -39.38 | 116.76 | 0.6771 | 612.2 | 999999 | |
| 0.00 | 2.08 | 0.00 | 1.40 | -18.05 | 26.10 | -39.82 | 116.24 | 0.6812 | 561.0 | 504.7 | |
| 0.00 | 1.63 | 0.00 | 1.10 | -17.92 | 25.97 | -39.95 | 116.00 | 0.6821 | 718.0 | 568.7 | |
| 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. | |