SDO HMI 2011-08-16 21:59:09 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 |
| 9.63 | 37.80 | 5.37 | 21.15 | -17.36 | 112.51 | -13.47 | 151.28 | 0.4648 | 329.0 | -166.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-16 21:59:09 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 |
| 2.16 | 2.61 | 1.20 | 1.45 | -18.19 | 116.08 | -9.91 | 158.71 | 0.4521 | 892.1 | 691.8 | |
| 0.00 | 2.61 | 0.00 | 1.45 | -18.43 | 115.87 | -10.12 | 158.50 | 0.4567 | 820.0 | 601.7 | |
| 0.00 | 1.53 | 0.00 | 0.85 | -18.17 | 115.85 | -10.14 | 158.24 | 0.4529 | 913.0 | 759.5 | |
| 0.00 | 1.98 | 0.00 | 1.11 | -18.04 | 114.04 | -11.95 | 154.69 | 0.4624 | -921.0 | -737.9 | |
| 0.00 | 2.97 | 0.00 | 1.66 | -17.85 | 113.82 | -12.16 | 154.10 | 0.4611 | -893.0 | -766.4 | |
| 7.47 | 9.54 | 4.17 | 5.33 | -17.06 | 112.18 | -13.81 | 150.30 | 0.4623 | 974.8 | 640.8 | |
| 0.00 | 3.69 | 0.00 | 2.05 | -16.57 | 112.02 | -13.96 | 149.45 | 0.4570 | 905.0 | 798.0 | |
| 0.00 | 1.17 | 0.00 | 0.65 | -16.24 | 111.91 | -14.07 | 148.88 | 0.4535 | 822.0 | 586.6 | |
| 0.00 | 1.98 | 0.00 | 1.12 | -17.61 | 110.72 | -15.26 | 148.40 | 0.4808 | -898.0 | -772.7 | |
| 0.00 | 0.90 | 0.00 | 0.51 | -17.41 | 110.74 | -15.25 | 148.20 | 0.4781 | -725.0 | -631.0 | |
| 0.00 | 8.82 | 0.00 | 4.97 | -17.09 | 110.37 | -15.61 | 147.21 | 0.4770 | -431.0 | -765.4 | |
| 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. | |