SDO HMI 2011-08-20 01:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.07 | 26.55 | 5.72 | 81.05 | 19.26 | 1.66 | -82.47 | 71.52 | 0.9874 | -232.1 | 38.3 | |
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back to the solar disc SDO HMI 2011-08-20 01:59:09 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 | 2.25 | 0.00 | 7.25 | 19.86 | 1.17 | -82.96 | 70.88 | 0.9886 | 39.0 | 81.5 | |
| 2.07 | 8.46 | 5.72 | 23.36 | 19.17 | 2.75 | -81.38 | 71.68 | 0.9845 | -364.4 | -347.8 | |
| 0.00 | 0.45 | 0.00 | 1.24 | 18.72 | 2.71 | -81.42 | 72.14 | 0.9847 | -308.0 | -277.0 | |
| 0.00 | 15.39 | 0.00 | 49.20 | 19.22 | 1.18 | -82.95 | 71.53 | 0.9887 | 329.0 | 178.4 | |
| 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. | |