SDO HMI 2011-08-30 08:59:08 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 |
| 40.07 | 273.72 | 20.80 | 142.24 | 13.83 | 291.68 | -16.49 | 66.26 | 0.3025 | -774.1 | -363.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 08:59:08 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 | 2.24 | 0.00 | 1.15 | 9.33 | 293.35 | -14.81 | 80.53 | 0.2569 | -803.0 | -598.3 | |
| 34.15 | 260.82 | 17.73 | 135.46 | 13.87 | 291.81 | -16.36 | 65.98 | 0.3007 | -1361.7 | -405.5 | |
| 5.92 | -2.00 | 3.07 | -2.00 | 13.71 | 291.53 | -16.64 | 66.80 | 0.3040 | -1075.3 | 999999 | |
| 0.00 | 1.52 | 0.00 | 0.80 | 16.40 | 290.61 | -17.55 | 60.12 | 0.3351 | 1014.0 | 763.5 | |
| 0.00 | 1.34 | 0.00 | 0.71 | 15.51 | 290.50 | -17.67 | 62.70 | 0.3305 | -723.0 | -527.2 | |
| 0.00 | 1.79 | 0.00 | 0.95 | 14.84 | 289.14 | -19.03 | 66.00 | 0.3465 | 799.0 | 715.2 | |
| 0.00 | 1.25 | 0.00 | 0.66 | 14.22 | 288.89 | -19.27 | 67.92 | 0.3468 | 827.0 | 643.0 | |
| 0.00 | 1.17 | 0.00 | 0.61 | 12.54 | 288.77 | -19.40 | 72.74 | 0.3409 | 812.0 | 697.5 | |
| 0.00 | 1.52 | 0.00 | 0.81 | 14.24 | 288.53 | -19.64 | 68.20 | 0.3524 | 883.0 | 654.3 | |
| 0.00 | 1.08 | 0.00 | 0.57 | 12.01 | 288.55 | -19.62 | 74.39 | 0.3425 | 824.0 | 661.8 | |
| 0.00 | 0.99 | 0.00 | 0.52 | 14.31 | 288.09 | -20.08 | 68.37 | 0.3594 | 742.0 | 649.2 | |
| 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. | |