SDO HMI 2011-08-23 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 |
| 14.19 | 30.09 | 10.26 | 21.32 | 7.59 | 347.61 | -45.86 | 86.30 | 0.7128 | -296.7 | -384.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-23 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 |
| 8.44 | 11.94 | 5.55 | 7.85 | 7.07 | 352.01 | -41.47 | 87.24 | 0.6602 | -910.5 | -576.5 | |
| 0.00 | 0.45 | 0.00 | 0.30 | 7.09 | 351.51 | -41.96 | 87.18 | 0.6666 | -629.0 | -532.8 | |
| 0.00 | 2.78 | 0.00 | 1.90 | 6.89 | 349.82 | -43.65 | 87.35 | 0.6883 | -807.0 | -689.5 | |
| 0.00 | 1.89 | 0.00 | 1.29 | 6.96 | 349.52 | -43.96 | 87.24 | 0.6921 | -491.0 | -459.8 | |
| 0.00 | 1.44 | 0.00 | 1.01 | 6.98 | 348.05 | -45.42 | 87.09 | 0.7103 | -601.0 | -525.0 | |
| 0.00 | 2.42 | 0.00 | 1.70 | 6.19 | 348.01 | -45.46 | 88.21 | 0.7113 | -631.0 | -478.9 | |
| 0.00 | 1.26 | 0.00 | 0.89 | 7.62 | 347.66 | -45.82 | 86.17 | 0.7147 | -474.0 | -403.6 | |
| 0.00 | 1.62 | 0.00 | 1.23 | 7.94 | 343.77 | -49.71 | 85.52 | 0.7600 | 656.0 | 547.2 | |
| 5.75 | 6.29 | 4.71 | 5.15 | 9.31 | 340.09 | -53.39 | 83.60 | 0.7993 | 617.5 | 375.5 | |
| 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. | |