| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 29.82 | 180.55 | 20.54 | 123.50 | 11.93 | 262.95 | 40.08 | 293.89 | 0.6901 | -688.1 | -267.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-17 18:00:34 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 |
| 16.46 | 172.06 | 11.37 | 118.57 | 11.99 | 263.74 | 40.87 | 293.37 | 0.6996 | -985.3 | -310.7 | |
| 13.36 | -1.00 | 9.17 | -1.00 | 11.63 | 263.43 | 40.56 | 293.04 | 0.6944 | -1250.4 | 999999 | |
| 0.00 | 1.42 | 0.00 | 0.90 | 16.87 | 255.46 | 32.59 | 305.30 | 0.6338 | 517.0 | 418.2 | |
| 0.00 | 1.42 | 0.00 | 0.85 | 16.35 | 249.33 | 26.46 | 310.20 | 0.5619 | 656.0 | 512.9 | |
| 0.00 | 1.06 | 0.00 | 0.60 | 12.94 | 245.53 | 22.66 | 309.34 | 0.4874 | 782.0 | 688.7 | |
| 0.00 | 1.50 | 0.00 | 0.85 | 12.95 | 244.99 | 22.12 | 310.02 | 0.4812 | 885.0 | 721.4 | |
| 0.00 | 1.50 | 0.00 | 0.84 | 12.79 | 244.15 | 21.28 | 310.86 | 0.4698 | 784.0 | 632.6 | |
| 0.00 | 1.59 | 0.00 | 0.89 | 13.48 | 242.85 | 19.98 | 313.76 | 0.4620 | 784.0 | 647.4 | |
| 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. | |