| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 41.88 | 157.91 | 39.99 | 152.06 | 18.91 | 171.71 | 57.11 | 292.01 | 0.8571 | -122.4 | -18.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-04 21:58:56 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 |
| 0.51 | 1.71 | 0.54 | 1.80 | 17.02 | 175.30 | 60.70 | 289.11 | 0.8845 | 299.8 | 344.4 | |
| 10.66 | 62.27 | 11.42 | 66.83 | 18.92 | 175.51 | 60.91 | 291.19 | 0.8886 | -528.9 | -123.3 | |
| 1.11 | -2.00 | 1.18 | -2.00 | 19.17 | 175.28 | 60.68 | 291.51 | 0.8872 | -546.9 | 999999 | |
| 9.47 | 15.53 | 9.34 | 15.28 | 19.03 | 172.66 | 58.06 | 291.87 | 0.8665 | -660.1 | -523.3 | |
| 3.58 | 8.79 | 3.27 | 8.03 | 18.01 | 169.97 | 55.37 | 291.29 | 0.8420 | -536.3 | -368.5 | |
| 0.00 | 0.94 | 0.00 | 0.84 | 17.67 | 169.32 | 54.72 | 291.04 | 0.8355 | -577.0 | -500.4 | |
| 0.00 | 1.62 | 0.00 | 1.46 | 18.58 | 169.30 | 54.71 | 292.10 | 0.8372 | 343.0 | 195.1 | |
| 12.37 | 63.81 | 10.68 | 55.06 | 18.99 | 167.43 | 52.83 | 293.07 | 0.8212 | 649.5 | 202.9 | |
| 2.13 | -8.00 | 1.82 | -8.00 | 19.18 | 166.94 | 52.35 | 293.42 | 0.8172 | 765.5 | 999999 | |
| 2.05 | 3.24 | 1.74 | 2.76 | 19.53 | 166.64 | 52.04 | 293.92 | 0.8152 | 694.7 | 595.0 | |
| 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. | |