| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.51 | 10.28 | 1.14 | 7.81 | 14.61 | 262.63 | -49.68 | 76.77 | 0.7600 | -69.6 | -232.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-21 08:00:34 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 | 1.15 | 0.00 | 0.86 | 16.19 | 263.71 | -48.60 | 74.60 | 0.7495 | 577.0 | 480.5 | |
| 0.00 | 0.98 | 0.00 | 0.73 | 15.09 | 263.54 | -48.78 | 76.08 | 0.7505 | 454.0 | 386.9 | |
| 0.00 | 1.77 | 0.00 | 1.33 | 14.35 | 263.19 | -49.13 | 77.09 | 0.7538 | -722.0 | -584.7 | |
| 1.51 | 4.52 | 1.14 | 3.42 | 14.37 | 262.75 | -49.56 | 77.09 | 0.7587 | -652.8 | -577.9 | |
| 0.00 | 1.15 | 0.00 | 0.88 | 14.61 | 262.29 | -50.02 | 76.82 | 0.7639 | -471.0 | -451.3 | |
| 0.00 | 0.71 | 0.00 | 0.59 | 13.73 | 258.52 | -53.79 | 78.12 | 0.8032 | 479.0 | 426.8 | |
| 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. | |