| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.95 | 0.00 | 22.07 | -18.46 | 48.53 | 80.09 | 252.54 | 0.9801 | -10.5 | 139.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-13 11:00:29 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 | 5.21 | 0.00 | 14.28 | -17.96 | 49.71 | 81.27 | 252.98 | 0.9842 | 231.0 | 311.0 | |
| 0.00 | 1.04 | 0.00 | 2.25 | -18.66 | 46.82 | 78.38 | 252.45 | 0.9744 | 105.0 | 88.3 | |
| 0.00 | 0.96 | 0.00 | 1.90 | -19.12 | 45.58 | 77.15 | 252.03 | 0.9695 | -71.0 | -167.1 | |
| 0.00 | 1.74 | 0.00 | 3.64 | -19.96 | 46.51 | 78.07 | 251.13 | 0.9730 | -307.0 | -340.5 | |
| 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. | |