| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 3.14 | 0.00 | 2.77 | 11.22 | 180.34 | -56.43 | 81.05 | 0.8247 | -124.0 | -62.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-30 19:00:37 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 | 0.54 | 0.00 | 0.40 | 11.97 | 187.48 | -49.29 | 80.34 | 0.7545 | -411.0 | -380.0 | |
| 0.00 | 1.07 | 0.00 | 0.86 | 12.86 | 184.22 | -52.54 | 79.25 | 0.7899 | -535.0 | -486.0 | |
| 0.00 | 0.90 | 0.00 | 0.76 | 12.81 | 181.76 | -55.01 | 79.36 | 0.8150 | 227.0 | 308.4 | |
| 0.00 | 0.63 | 0.00 | 0.75 | 7.32 | 170.63 | -66.13 | 85.19 | 0.9120 | 223.0 | 220.4 | |
| 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. | |