SDO HMI 2011-08-16 20:59:09 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 |
| 11.25 | 36.63 | 6.28 | 20.51 | -17.34 | 112.61 | -13.93 | 150.45 | 0.4678 | 289.5 | -82.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-16 20:59:09 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 |
| 1.89 | 7.47 | 1.05 | 4.16 | -18.22 | 115.98 | -10.56 | 157.47 | 0.4561 | 824.6 | 630.3 | |
| 1.17 | -1.00 | 0.65 | -1.00 | -18.42 | 115.80 | -10.73 | 157.32 | 0.4601 | 717.2 | 999999 | |
| 0.00 | 3.87 | 0.00 | 2.16 | -17.87 | 113.92 | -12.62 | 153.29 | 0.4645 | -1063.0 | -721.4 | |
| 8.19 | 9.54 | 4.58 | 5.34 | -17.06 | 112.15 | -14.39 | 149.25 | 0.4667 | 955.6 | 647.9 | |
| 0.00 | 4.41 | 0.00 | 2.46 | -16.53 | 111.99 | -14.55 | 148.37 | 0.4610 | 885.0 | 791.5 | |
| 0.00 | 1.71 | 0.00 | 0.95 | -16.24 | 111.92 | -14.62 | 147.89 | 0.4578 | 882.0 | 667.3 | |
| 0.00 | 3.33 | 0.00 | 1.88 | -17.60 | 110.72 | -15.82 | 147.47 | 0.4852 | -909.0 | -736.0 | |
| 0.00 | 1.08 | 0.00 | 0.61 | -17.14 | 110.63 | -15.91 | 146.78 | 0.4801 | -906.0 | -747.6 | |
| 0.00 | 5.22 | 0.00 | 2.95 | -17.02 | 110.21 | -16.33 | 145.95 | 0.4821 | -1042.0 | -809.3 | |
| 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. | |