| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 10.08 | 53.18 | 29.13 | 153.54 | -12.92 | 230.12 | 80.13 | 257.25 | 0.9852 | 187.8 | 55.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 12:00:38 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 |
| 4.95 | 47.24 | 14.71 | 139.31 | -12.64 | 230.61 | 80.62 | 257.53 | 0.9867 | 123.9 | 17.9 | |
| 5.13 | -1.00 | 14.42 | -1.00 | -13.19 | 230.03 | 80.04 | 256.97 | 0.9851 | 258.4 | 999999 | |
| 0.00 | 4.95 | 0.00 | 12.56 | -12.82 | 228.87 | 78.88 | 257.33 | 0.9815 | 485.0 | 409.1 | |
| 0.00 | 0.99 | 0.00 | 1.67 | -13.99 | 222.93 | 72.94 | 256.00 | 0.9573 | -186.0 | -152.4 | |
| 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. | |