| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.28 | 15.42 | 1.30 | 8.96 | -13.80 | 58.11 | -23.82 | 130.84 | 0.5180 | 191.1 | 207.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-08 19:00:31 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 |
| 0.44 | 1.84 | 0.25 | 1.03 | -12.47 | 61.32 | -20.61 | 132.52 | 0.4682 | 925.0 | 777.8 | |
| 0.00 | 3.42 | 0.00 | 1.92 | -12.80 | 61.34 | -20.59 | 133.07 | 0.4715 | 842.0 | 682.3 | |
| 0.00 | 1.14 | 0.00 | 0.64 | -12.77 | 60.97 | -20.96 | 132.53 | 0.4752 | 712.0 | 640.3 | |
| 0.88 | 3.07 | 0.50 | 1.73 | -11.98 | 59.65 | -22.27 | 129.51 | 0.4826 | -934.5 | -771.0 | |
| 0.96 | 2.45 | 0.55 | 1.39 | -13.06 | 60.29 | -21.64 | 132.07 | 0.4859 | 660.6 | 495.1 | |
| 0.00 | 1.75 | 0.00 | 1.13 | -12.51 | 46.38 | -35.55 | 118.06 | 0.6456 | -920.0 | -688.7 | |
| 0.00 | 1.75 | 0.00 | 1.12 | -22.38 | 54.72 | -27.21 | 137.95 | 0.6336 | 643.0 | 520.8 | |
| 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. | |