| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 17.36 | 100.58 | 10.74 | 61.84 | 8.39 | 357.70 | 35.16 | 285.77 | 0.5940 | -320.4 | -287.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-16 10:58:55 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 |
| 17.36 | 87.39 | 10.74 | 54.09 | 8.32 | 358.30 | 35.76 | 285.40 | 0.6020 | -1123.4 | -432.2 | |
| 0.00 | 1.28 | 0.00 | 0.79 | 11.10 | 357.02 | 34.48 | 290.45 | 0.5951 | -237.0 | -403.0 | |
| 0.00 | 2.38 | 0.00 | 1.42 | 9.33 | 354.69 | 32.15 | 288.66 | 0.5563 | 666.0 | 505.6 | |
| 0.00 | 1.02 | 0.00 | 0.60 | 9.56 | 353.93 | 31.39 | 289.45 | 0.5469 | 623.0 | 544.7 | |
| 0.00 | 2.04 | 0.00 | 1.20 | 8.18 | 353.59 | 31.05 | 287.16 | 0.5365 | 820.0 | 610.0 | |
| 0.00 | 0.85 | 0.00 | 0.50 | 9.59 | 353.73 | 31.19 | 289.61 | 0.5442 | 672.0 | 585.7 | |
| 0.00 | 1.11 | 0.00 | 0.65 | 9.41 | 353.64 | 31.10 | 289.33 | 0.5422 | 832.0 | 699.8 | |
| 0.00 | 1.70 | 0.00 | 0.99 | 9.01 | 352.35 | 29.81 | 289.32 | 0.5224 | 882.0 | 782.8 | |
| 0.00 | 1.70 | 0.00 | 0.98 | 8.01 | 351.72 | 29.18 | 287.81 | 0.5091 | 829.0 | 727.5 | |
| 0.00 | 1.11 | 0.00 | 0.62 | 5.26 | 350.39 | 27.85 | 283.04 | 0.4795 | 654.0 | 543.8 | |
| 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. | |