| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 10.95 | 0.00 | 6.17 | -16.11 | 73.77 | -25.17 | 119.00 | 0.4709 | -69.0 | -60.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-07 21:00:24 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 | 1.44 | 0.00 | 0.77 | -19.18 | 83.09 | -15.84 | 136.09 | 0.3735 | 799.0 | 594.4 | |
| 0.00 | 2.21 | 0.00 | 1.18 | -13.29 | 79.10 | -19.84 | 117.10 | 0.3726 | -860.0 | -639.8 | |
| 0.00 | 2.38 | 0.00 | 1.36 | -20.72 | 73.06 | -25.88 | 126.09 | 0.5072 | 776.0 | 645.8 | |
| 0.00 | 1.02 | 0.00 | 0.59 | -21.00 | 73.01 | -25.93 | 126.52 | 0.5100 | 770.0 | 547.4 | |
| 0.00 | 1.27 | 0.00 | 0.74 | -14.30 | 69.13 | -29.81 | 111.63 | 0.5203 | -622.0 | -536.5 | |
| 0.00 | 1.27 | 0.00 | 0.74 | -12.46 | 68.69 | -30.25 | 107.98 | 0.5193 | -725.0 | -644.0 | |
| 0.00 | 1.36 | 0.00 | 0.79 | -10.87 | 67.62 | -31.31 | 104.59 | 0.5295 | -621.0 | -512.4 | |
| 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. | |