| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.17 | 0.00 | 3.24 | 16.82 | 110.21 | 29.24 | 310.06 | 0.6127 | 544.4 | 409.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-04 22:00:28 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 | 1.64 | 0.00 | 1.06 | 17.08 | 112.95 | 31.98 | 307.87 | 0.6436 | 63.0 | 133.3 | |
| 0.00 | 0.86 | 0.00 | 0.53 | 15.88 | 109.57 | 28.60 | 309.39 | 0.5981 | 739.0 | 618.9 | |
| 0.00 | 0.86 | 0.00 | 0.53 | 15.96 | 109.30 | 28.33 | 309.76 | 0.5958 | 669.0 | 507.4 | |
| 0.00 | 0.60 | 0.00 | 0.38 | 19.84 | 109.06 | 28.09 | 314.91 | 0.6277 | 536.0 | 432.4 | |
| 0.00 | 1.21 | 0.00 | 0.74 | 16.17 | 107.97 | 27.00 | 311.40 | 0.5835 | 715.0 | 570.9 | |
| 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. | |