SDO HMI 2011-02-20 14:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.08 | 72.47 | 24.05 | 344.24 | -19.10 | 34.58 | 85.81 | 251.42 | 0.9935 | 53.6 | 80.8 | |
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back to the solar disc SDO HMI 2011-02-20 14:58:57 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 | 17.86 | 0.00 | 156.49 | -18.71 | 37.40 | 88.63 | 251.57 | 0.9984 | -363.0 | 15.7 | |
| 0.00 | 11.59 | 0.00 | 52.58 | -18.57 | 34.35 | 85.59 | 251.99 | 0.9943 | 284.0 | 170.3 | |
| 2.15 | 21.81 | 6.70 | 71.71 | -19.14 | 31.49 | 82.72 | 251.65 | 0.9880 | -302.4 | 128.4 | |
| 0.00 | 1.97 | 0.00 | 6.86 | -19.58 | 32.56 | 83.79 | 251.13 | 0.9905 | 430.0 | 319.9 | |
| 0.00 | 1.72 | 0.00 | 6.01 | -19.83 | 32.53 | 83.76 | 250.88 | 0.9904 | 281.0 | 276.6 | |
| 2.58 | 10.99 | 8.26 | 33.88 | -20.30 | 31.78 | 83.02 | 250.46 | 0.9885 | 388.8 | 204.8 | |
| 1.20 | -6.00 | 3.72 | -6.00 | -20.54 | 31.44 | 82.67 | 250.24 | 0.9876 | 343.8 | 999999 | |
| 0.00 | 1.46 | 0.00 | 4.59 | -21.39 | 31.76 | 82.99 | 249.36 | 0.9883 | -267.0 | -208.8 | |
| 2.15 | 3.35 | 5.37 | 8.41 | -21.49 | 29.29 | 80.52 | 249.40 | 0.9813 | -138.5 | 38.0 | |
| 0.00 | 1.72 | 0.00 | 3.71 | -20.62 | 27.25 | 78.49 | 250.39 | 0.9746 | -474.0 | -379.0 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
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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. |
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| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
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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. |
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| 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. | |