| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.62 | 13.39 | 0.32 | 6.99 | -15.66 | 203.52 | 13.13 | 227.13 | 0.3122 | -55.9 | -36.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 05:00:34 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 | 1.06 | 0.00 | 0.56 | -13.44 | 209.32 | 18.94 | 244.86 | 0.3502 | 751.0 | 527.2 | |
| 0.00 | 2.04 | 0.00 | 1.08 | -13.39 | 209.12 | 18.74 | 244.79 | 0.3469 | 777.0 | 649.2 | |
| 0.00 | 2.04 | 0.00 | 1.08 | -13.30 | 208.99 | 18.60 | 244.88 | 0.3443 | 923.0 | 783.9 | |
| 0.00 | 0.80 | 0.00 | 0.42 | -13.76 | 208.73 | 18.34 | 243.35 | 0.3435 | 511.0 | 391.7 | |
| 0.00 | 2.13 | 0.00 | 1.11 | -12.04 | 206.95 | 16.57 | 246.22 | 0.3061 | -881.0 | -699.7 | |
| 0.00 | 1.24 | 0.00 | 0.64 | -16.65 | 202.66 | 12.27 | 225.43 | 0.2871 | -597.0 | -488.0 | |
| 0.00 | 1.24 | 0.00 | 0.65 | -24.47 | 194.53 | 4.14 | 191.26 | 0.3382 | -682.0 | -550.4 | |
| 0.62 | 2.84 | 0.32 | 1.45 | -18.91 | 193.29 | 2.91 | 191.44 | 0.2430 | -959.7 | -707.4 | |
| 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. | |