SDO HMI 2011-12-08 07:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.20 | 138.73 | 48.72 | 294.00 | -17.05 | 353.77 | -75.82 | 107.55 | 0.9732 | 166.3 | 47.2 | |
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back to the solar disc SDO HMI 2011-12-08 07:58:56 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 |
| 2.64 | 133.70 | 5.66 | 284.64 | -17.78 | 353.68 | -75.91 | 108.29 | 0.9738 | 341.2 | 52.3 | |
| 1.71 | -1.00 | 3.71 | -1.00 | -17.78 | 353.41 | -76.17 | 108.27 | 0.9748 | -266.8 | 999999 | |
| 11.26 | -1.00 | 23.62 | -1.00 | -16.91 | 353.87 | -75.72 | 107.42 | 0.9728 | 529.8 | 999999 | |
| 5.37 | -1.00 | 11.61 | -1.00 | -17.00 | 353.49 | -76.09 | 107.49 | 0.9743 | -360.9 | 999999 | |
| 2.22 | 5.03 | 4.12 | 9.36 | -14.97 | 355.59 | -73.99 | 105.54 | 0.9650 | -281.6 | -189.6 | |
| 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. | |