| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.04 | 0.00 | 4.94 | -10.80 | 333.24 | 15.44 | 218.06 | 0.4035 | -196.0 | -151.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-20 22:00:34 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 |
| 0.00 | 1.77 | 0.00 | 1.05 | -15.58 | 342.14 | 24.33 | 226.62 | 0.5482 | 563.0 | 490.4 | |
| 0.00 | 0.71 | 0.00 | 0.41 | -11.87 | 341.33 | 23.53 | 231.11 | 0.5039 | 703.0 | 654.6 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -12.34 | 339.17 | 21.37 | 227.64 | 0.4836 | 772.0 | 601.8 | |
| 0.00 | 1.15 | 0.00 | 0.62 | -10.88 | 333.17 | 15.37 | 220.53 | 0.4022 | -731.0 | -566.2 | |
| 0.00 | 1.42 | 0.00 | 0.74 | -8.79 | 327.40 | 9.59 | 211.18 | 0.3195 | -985.0 | -780.9 | |
| 0.00 | 1.51 | 0.00 | 0.78 | -7.34 | 325.06 | 7.26 | 206.76 | 0.2796 | -877.0 | -683.9 | |
| 0.00 | 1.33 | 0.00 | 0.69 | -7.40 | 324.91 | 7.11 | 206.18 | 0.2793 | -817.0 | -668.4 | |
| 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. | |