| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 10.32 | 0.00 | 6.82 | 12.48 | 18.16 | -39.89 | 71.40 | 0.6644 | -496.1 | -466.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-04 05:00:25 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 | 0.68 | 0.00 | 0.42 | 14.92 | 23.66 | -34.39 | 65.33 | 0.6028 | -593.0 | -526.0 | |
| 0.00 | 1.02 | 0.00 | 0.64 | 13.61 | 21.99 | -36.06 | 68.23 | 0.6183 | -418.0 | -425.7 | |
| 0.00 | 1.45 | 0.00 | 0.96 | 19.02 | 20.46 | -37.59 | 61.02 | 0.6616 | -705.0 | -507.8 | |
| 0.00 | 0.77 | 0.00 | 0.52 | 15.79 | 16.99 | -41.06 | 67.19 | 0.6881 | -483.0 | -434.9 | |
| 0.00 | 0.94 | 0.00 | 0.63 | 13.29 | 16.98 | -41.07 | 70.73 | 0.6796 | -296.0 | -345.3 | |
| 0.00 | 1.96 | 0.00 | 1.30 | 8.86 | 17.17 | -40.88 | 77.14 | 0.6656 | -639.0 | -635.1 | |
| 0.00 | 1.71 | 0.00 | 1.15 | 11.11 | 16.30 | -41.74 | 74.08 | 0.6817 | -381.0 | -374.4 | |
| 0.00 | 1.79 | 0.00 | 1.20 | 9.16 | 16.33 | -41.72 | 76.91 | 0.6768 | -454.0 | -419.6 | |
| 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. | |