| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.66 | 18.48 | 6.77 | 27.29 | -17.07 | 206.18 | -66.90 | 111.02 | 0.9434 | 433.6 | 97.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-28 01:00:37 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 | 0.72 | 0.00 | 1.10 | -18.98 | 205.89 | -67.19 | 112.90 | 0.9477 | 149.0 | 202.5 | |
| 2.33 | 3.86 | 3.32 | 5.49 | -17.25 | 206.98 | -66.10 | 111.40 | 0.9393 | 522.6 | 330.4 | |
| 0.72 | 12.73 | 1.05 | 18.94 | -17.16 | 206.32 | -66.76 | 111.15 | 0.9428 | 496.5 | 32.5 | |
| 1.61 | -3.00 | 2.40 | -3.00 | -16.86 | 205.89 | -67.19 | 110.72 | 0.9446 | 406.5 | 999999 | |
| 0.00 | 1.17 | 0.00 | 1.76 | -16.64 | 205.56 | -67.53 | 110.41 | 0.9461 | 422.0 | 317.0 | |
| 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. | |