| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.53 | 7.54 | 0.39 | 5.60 | 14.86 | 261.48 | -48.64 | 76.38 | 0.7483 | -135.8 | -309.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-21 12:00:34 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 |
| 0.53 | 3.46 | 0.39 | 2.50 | 14.28 | 262.90 | -47.22 | 77.02 | 0.7323 | -559.8 | -643.3 | |
| 0.00 | 1.06 | 0.00 | 0.78 | 15.05 | 262.17 | -47.95 | 76.05 | 0.7412 | -283.0 | -332.7 | |
| 0.00 | 1.51 | 0.00 | 1.10 | 14.57 | 262.26 | -47.86 | 76.70 | 0.7397 | -634.0 | -464.2 | |
| 0.00 | 0.62 | 0.00 | 0.50 | 15.86 | 257.58 | -52.54 | 75.37 | 0.7914 | 489.0 | 429.7 | |
| 0.00 | 0.89 | 0.00 | 0.72 | 16.39 | 257.28 | -52.84 | 74.73 | 0.7948 | 474.0 | 418.4 | |
| 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. | |