SDO HMI 2014-10-12 12:00:31 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 |
| 27.48 | 194.66 | 47.71 | 409.86 | -9.10 | 318.01 | -75.00 | 100.97 | 0.9692 | 355.3 | 108.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-12 12:00:31 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 |
| 27.48 | 162.01 | 47.71 | 281.49 | -9.00 | 320.96 | -72.05 | 101.29 | 0.9595 | 411.7 | 118.2 | |
| 0.00 | 3.68 | 0.00 | 7.19 | -9.48 | 319.01 | -74.01 | 101.47 | 0.9686 | 143.0 | 27.4 | |
| 0.00 | 5.78 | 0.00 | 11.66 | -9.73 | 318.63 | -74.39 | 101.67 | 0.9704 | -379.0 | -326.3 | |
| 0.00 | 1.05 | 0.00 | 2.18 | -10.11 | 318.26 | -74.75 | 102.00 | 0.9721 | -306.0 | -286.2 | |
| 0.00 | 4.46 | 0.00 | 12.89 | -8.86 | 313.99 | -79.03 | 100.12 | 0.9861 | -421.0 | -329.4 | |
| 0.00 | 4.20 | 0.00 | 22.85 | -9.85 | 309.62 | -83.40 | 100.54 | 0.9959 | 51.0 | 122.1 | |
| 0.00 | 13.48 | 0.00 | 71.60 | -9.11 | 309.63 | -83.38 | 99.80 | 0.9958 | 357.0 | 244.5 | |
| 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. | |