SDO HMI 2011-10-20 17:59:01 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 |
| 5.05 | 27.93 | 2.82 | 15.40 | -15.56 | 5.03 | 14.96 | 214.79 | 0.4356 | 77.2 | 114.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-20 17:59:01 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 | 0.96 | 0.00 | 0.53 | -14.66 | 6.84 | 16.77 | 219.37 | 0.4419 | 775.0 | 557.9 | |
| 0.00 | 1.65 | 0.00 | 0.92 | -15.48 | 6.45 | 16.38 | 217.55 | 0.4480 | 694.0 | 599.9 | |
| 0.00 | 1.04 | 0.00 | 0.58 | -15.77 | 6.45 | 16.38 | 217.13 | 0.4514 | 826.0 | 707.2 | |
| 0.00 | 1.65 | 0.00 | 0.91 | -14.74 | 6.27 | 16.20 | 218.29 | 0.4372 | 876.0 | 699.1 | |
| 2.96 | 7.83 | 1.65 | 4.37 | -16.73 | 6.40 | 16.33 | 215.75 | 0.4628 | 908.0 | 731.9 | |
| 2.09 | 3.22 | 1.17 | 1.81 | -17.53 | 6.28 | 16.21 | 214.51 | 0.4717 | -839.0 | -892.8 | |
| 0.00 | 1.22 | 0.00 | 0.68 | -15.98 | 5.98 | 15.91 | 216.05 | 0.4497 | 831.0 | 742.1 | |
| 0.00 | 1.39 | 0.00 | 0.78 | -17.69 | 6.00 | 15.93 | 213.86 | 0.4712 | -761.0 | -578.7 | |
| 0.00 | 1.83 | 0.00 | 1.00 | -15.19 | 4.00 | 13.93 | 213.57 | 0.4219 | 663.0 | 542.2 | |
| 0.00 | 2.61 | 0.00 | 1.40 | -13.15 | 1.98 | 11.91 | 212.36 | 0.3771 | -608.0 | -538.5 | |
| 0.00 | 1.74 | 0.00 | 0.93 | -13.15 | 1.73 | 11.66 | 211.82 | 0.3749 | -923.0 | -779.5 | |
| 0.00 | 1.48 | 0.00 | 0.79 | -12.98 | 1.35 | 11.28 | 211.21 | 0.3694 | -947.0 | -717.2 | |
| 0.00 | 1.31 | 0.00 | 0.70 | -13.48 | 1.28 | 11.21 | 210.34 | 0.3758 | -875.0 | -615.7 | |
| 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. | |