SDO HMI 2011-08-04 21:59:10 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 |
| 7.96 | 20.16 | 5.57 | 14.37 | -16.53 | 244.22 | -40.42 | 120.07 | 0.7202 | 254.5 | -0.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-04 21:59:10 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 |
| 0.00 | 2.08 | 0.00 | 1.45 | -16.11 | 245.56 | -39.08 | 120.32 | 0.7039 | 858.0 | 656.2 | |
| 5.97 | 10.13 | 4.17 | 7.08 | -16.38 | 245.42 | -39.22 | 120.58 | 0.7069 | 742.7 | 504.8 | |
| 1.99 | -2.00 | 1.40 | -2.00 | -16.63 | 245.11 | -39.53 | 120.70 | 0.7116 | 513.5 | 999999 | |
| 0.00 | 0.72 | 0.00 | 0.51 | -16.77 | 244.95 | -39.69 | 120.79 | 0.7141 | 407.0 | 395.5 | |
| 0.00 | 0.72 | 0.00 | 0.51 | -16.91 | 244.83 | -39.81 | 120.89 | 0.7161 | 576.0 | 484.5 | |
| 0.00 | 0.36 | 0.00 | 0.26 | -17.09 | 244.62 | -40.02 | 120.98 | 0.7193 | 315.0 | 343.2 | |
| 0.00 | 1.54 | 0.00 | 1.11 | -15.13 | 242.89 | -41.75 | 117.53 | 0.7272 | -685.0 | -482.3 | |
| 0.00 | 2.44 | 0.00 | 1.82 | -17.30 | 241.75 | -42.89 | 119.60 | 0.7496 | -663.0 | -504.1 | |
| 0.00 | 0.72 | 0.00 | 0.54 | -17.23 | 241.42 | -43.22 | 119.33 | 0.7526 | -575.0 | -479.4 | |
| 0.00 | 1.45 | 0.00 | 1.09 | -17.07 | 241.29 | -43.35 | 119.08 | 0.7531 | -595.0 | -501.8 | |
| 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. | |