| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.61 | 0.00 | 2.87 | -21.84 | 93.41 | 29.86 | 230.66 | 0.6016 | -469.0 | -477.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-03 19:00:25 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 | 0.26 | 0.00 | 0.17 | -24.64 | 95.82 | 32.27 | 228.83 | 0.6471 | 522.0 | 632.3 | |
| 0.00 | 0.60 | 0.00 | 0.37 | -19.62 | 94.16 | 30.61 | 234.36 | 0.5924 | -749.0 | -625.3 | |
| 0.00 | 1.28 | 0.00 | 0.78 | -18.37 | 93.83 | 30.28 | 235.96 | 0.5798 | -712.0 | -555.7 | |
| 0.00 | 1.62 | 0.00 | 1.02 | -23.13 | 93.71 | 30.16 | 229.07 | 0.6139 | -685.0 | -485.6 | |
| 0.00 | 0.85 | 0.00 | 0.53 | -25.09 | 90.90 | 27.35 | 223.92 | 0.6021 | -721.0 | -591.6 | |
| 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. | |