| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 47.94 | 335.69 | 117.89 | 904.40 | -11.23 | 237.83 | -77.77 | 102.89 | 0.9825 | 89.1 | -224.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-21 02:00:34 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 |
| 8.33 | 42.00 | 14.51 | 72.90 | -9.49 | 243.77 | -71.83 | 102.15 | 0.9598 | 434.4 | 257.4 | |
| 20.56 | 95.44 | 39.21 | 187.94 | -11.23 | 242.54 | -73.06 | 103.69 | 0.9669 | 428.7 | -44.8 | |
| 0.62 | 8.60 | 1.45 | 21.02 | -13.12 | 239.87 | -75.73 | 105.12 | 0.9786 | 261.4 | -10.3 | |
| 1.06 | 149.68 | 2.71 | 465.52 | -12.19 | 238.76 | -76.84 | 103.99 | 0.9817 | -302.3 | -297.3 | |
| 3.28 | 39.97 | 12.01 | 157.02 | -12.75 | 235.25 | -80.35 | 103.97 | 0.9915 | -608.9 | -421.5 | |
| 14.09 | -4.00 | 48.00 | -4.00 | -10.83 | 235.61 | -79.99 | 102.11 | 0.9899 | -101.2 | 999999 | |
| 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. | |