| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 21.33 | 105.18 | 17.09 | 83.93 | -20.81 | 56.75 | -44.46 | 123.41 | 0.7863 | 481.3 | 243.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-18 18:59:09 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 | 1.17 | 0.00 | 0.86 | -18.52 | 60.38 | -40.83 | 122.85 | 0.7402 | 472.0 | 409.1 | |
| 13.14 | 90.87 | 10.39 | 72.18 | -20.90 | 57.32 | -43.89 | 123.81 | 0.7817 | 888.2 | 270.0 | |
| 6.75 | -2.00 | 5.42 | -2.00 | -21.16 | 56.63 | -44.58 | 123.72 | 0.7893 | 534.7 | 999999 | |
| 0.00 | 0.99 | 0.00 | 0.79 | -20.74 | 56.42 | -44.79 | 123.13 | 0.7890 | 214.0 | 176.5 | |
| 0.00 | 0.99 | 0.00 | 0.77 | -18.50 | 56.72 | -44.49 | 120.73 | 0.7754 | 568.0 | 443.5 | |
| 0.00 | 0.90 | 0.00 | 0.71 | -19.54 | 56.32 | -44.89 | 121.71 | 0.7841 | 526.0 | 452.4 | |
| 0.00 | 1.08 | 0.00 | 0.87 | -19.82 | 55.80 | -45.41 | 121.75 | 0.7901 | 574.0 | 442.2 | |
| 0.00 | 1.35 | 0.00 | 1.08 | -19.17 | 55.94 | -45.27 | 121.09 | 0.7858 | 490.0 | 397.4 | |
| 0.00 | 1.08 | 0.00 | 0.88 | -19.58 | 55.10 | -46.11 | 121.12 | 0.7954 | 380.0 | 279.0 | |
| 0.00 | 1.53 | 0.00 | 1.23 | -18.64 | 55.11 | -46.10 | 120.06 | 0.7910 | 415.0 | 335.5 | |
| 0.00 | 0.90 | 0.00 | 0.75 | -18.99 | 53.86 | -47.35 | 119.83 | 0.8039 | -539.0 | -499.2 | |
| 0.00 | 1.08 | 0.00 | 0.93 | -20.50 | 52.78 | -48.44 | 121.00 | 0.8198 | -572.0 | -464.6 | |
| 0.00 | 1.35 | 0.00 | 1.20 | -20.97 | 51.67 | -49.54 | 121.01 | 0.8310 | -574.0 | -473.8 | |
| 1.44 | 1.89 | 1.28 | 1.68 | -20.80 | 51.35 | -49.86 | 120.67 | 0.8330 | -438.4 | -445.0 | |
| 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. | |