SDO HMI 2011-08-11 15:59:10 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 |
| 10.83 | 27.69 | 6.63 | 16.95 | -21.83 | 172.78 | -22.62 | 142.62 | 0.5889 | -149.1 | 287.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-11 15:59:10 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 |
| 3.61 | 4.33 | 2.16 | 2.59 | -21.00 | 174.78 | -20.63 | 144.08 | 0.5627 | 883.2 | 732.2 | |
| 0.00 | 9.02 | 0.00 | 5.41 | -20.98 | 174.43 | -20.97 | 143.61 | 0.5654 | 588.0 | 585.1 | |
| 7.22 | 9.74 | 4.47 | 6.03 | -22.90 | 172.49 | -22.91 | 143.33 | 0.6027 | -842.2 | -676.1 | |
| 0.00 | 0.90 | 0.00 | 0.57 | -24.61 | 171.92 | -23.49 | 144.45 | 0.6255 | -618.0 | -551.1 | |
| 0.00 | 1.08 | 0.00 | 0.64 | -18.53 | 172.52 | -22.88 | 138.29 | 0.5562 | -543.0 | -423.1 | |
| 0.00 | 2.62 | 0.00 | 1.71 | -22.34 | 165.96 | -29.45 | 135.82 | 0.6548 | 845.0 | 663.1 | |
| 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. | |