| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.87 | 17.03 | 5.16 | 11.29 | 19.42 | 33.62 | -33.11 | 50.67 | 0.6680 | -335.9 | -131.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-11 15:58:56 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 |
| 7.87 | 10.86 | 5.16 | 7.12 | 19.28 | 34.55 | -32.18 | 50.10 | 0.6577 | -833.0 | -595.9 | |
| 0.00 | 1.03 | 0.00 | 0.68 | 19.69 | 33.90 | -32.83 | 50.15 | 0.6673 | -430.0 | -356.8 | |
| 0.00 | 1.11 | 0.00 | 0.74 | 19.30 | 33.35 | -33.38 | 51.07 | 0.6699 | -540.0 | -530.1 | |
| 0.00 | 0.86 | 0.00 | 0.57 | 19.68 | 32.96 | -33.77 | 50.92 | 0.6767 | -504.0 | -425.0 | |
| 0.00 | 1.03 | 0.00 | 0.70 | 19.39 | 31.58 | -35.15 | 52.35 | 0.6883 | 709.0 | 567.5 | |
| 0.00 | 1.28 | 0.00 | 0.89 | 20.03 | 30.41 | -36.33 | 52.46 | 0.7043 | 693.0 | 569.1 | |
| 0.00 | 0.86 | 0.00 | 0.59 | 19.80 | 30.35 | -36.38 | 52.77 | 0.7034 | 622.0 | 564.9 | |
| 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. | |