| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 35.41 | 241.23 | 26.15 | 178.88 | -3.78 | 0.29 | -47.87 | 95.45 | 0.7456 | 859.3 | 258.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-04 23:00:25 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 | 1.11 | 0.00 | 0.78 | -3.99 | 2.98 | -45.18 | 96.03 | 0.7139 | 541.0 | 487.8 | |
| 0.00 | 0.60 | 0.00 | 0.43 | -4.12 | 1.60 | -46.56 | 96.05 | 0.7306 | 185.0 | 180.0 | |
| 35.41 | 234.06 | 26.15 | 172.98 | -3.74 | 0.45 | -47.71 | 95.42 | 0.7438 | 1111.6 | 273.0 | |
| 0.00 | 1.28 | 0.00 | 0.98 | -4.37 | 358.83 | -49.33 | 96.11 | 0.7630 | 388.0 | 282.3 | |
| 0.00 | 1.02 | 0.00 | 0.91 | -5.68 | 352.44 | -55.72 | 97.14 | 0.8309 | -382.0 | -304.2 | |
| 0.00 | 1.11 | 0.00 | 0.98 | -5.41 | 352.37 | -55.79 | 96.82 | 0.8313 | -455.0 | -401.2 | |
| 0.00 | 0.68 | 0.00 | 0.61 | -5.21 | 352.29 | -55.87 | 96.56 | 0.8319 | -457.0 | -479.6 | |
| 0.00 | 1.37 | 0.00 | 1.21 | -4.58 | 352.27 | -55.89 | 95.81 | 0.8318 | -400.0 | -367.9 | |
| 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. | |