| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.90 | 66.97 | 21.88 | 156.85 | -9.80 | 330.71 | -76.16 | 101.62 | 0.9777 | 214.3 | -50.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-17 22:00:38 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 |
| 0.27 | 51.31 | 0.59 | 114.89 | -10.05 | 331.48 | -75.40 | 102.00 | 0.9752 | 135.3 | 39.0 | |
| 9.63 | -1.00 | 21.29 | -1.00 | -9.42 | 331.28 | -75.59 | 101.33 | 0.9755 | 290.1 | 999999 | |
| 0.00 | 8.91 | 0.00 | 23.29 | -11.26 | 329.43 | -77.44 | 102.89 | 0.9829 | -224.0 | -195.4 | |
| 0.00 | 4.77 | 0.00 | 13.12 | -10.69 | 328.91 | -77.96 | 102.24 | 0.9842 | -427.0 | -352.1 | |
| 0.00 | 1.98 | 0.00 | 5.55 | -9.13 | 328.41 | -78.46 | 100.59 | 0.9849 | -274.0 | -216.5 | |
| 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. | |