SDO HMI 2011-02-20 19:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.56 | 29.61 | 18.25 | 154.24 | -19.23 | 32.31 | 86.30 | 251.26 | 0.9948 | 155.9 | 28.9 | |
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back to the solar disc SDO HMI 2011-02-20 19:58:57 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 | 5.32 | 0.00 | 52.25 | -18.27 | 34.85 | 88.84 | 251.98 | 0.9986 | -94.0 | -54.8 | |
| 1.12 | 12.10 | 4.70 | 55.04 | -19.15 | 31.21 | 85.20 | 251.44 | 0.9935 | -193.7 | 143.5 | |
| 0.00 | 2.83 | 0.00 | 11.45 | -19.39 | 31.07 | 85.06 | 251.22 | 0.9932 | -293.0 | -241.2 | |
| 2.32 | 5.67 | 10.02 | 24.06 | -20.38 | 31.57 | 85.56 | 250.19 | 0.9939 | 527.0 | 201.4 | |
| 0.00 | 0.60 | 0.00 | 1.61 | -20.50 | 27.14 | 81.13 | 250.38 | 0.9834 | -316.0 | -324.0 | |
| 1.12 | 3.09 | 3.53 | 9.83 | -21.51 | 29.07 | 83.06 | 249.23 | 0.9884 | -100.2 | 4.7 | |
| 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. | |