SDO HMI 2011-09-02 00:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.71 | 100.92 | 13.33 | 56.74 | 18.65 | 299.33 | 26.41 | 296.57 | 0.4731 | -1022.9 | -435.7 | |
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back to the solar disc SDO HMI 2011-09-02 00:59:08 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 |
| 23.71 | 95.64 | 13.33 | 53.83 | 18.66 | 299.46 | 26.54 | 296.49 | 0.4749 | -1066.6 | -418.2 | |
| 0.00 | 0.89 | 0.00 | 0.50 | 18.57 | 298.74 | 25.81 | 296.84 | 0.4645 | -819.0 | -722.2 | |
| 0.00 | 1.88 | 0.00 | 1.04 | 18.68 | 297.27 | 24.35 | 298.19 | 0.4450 | -822.0 | -625.0 | |
| 0.00 | 2.51 | 0.00 | 1.37 | 18.36 | 296.14 | 23.22 | 298.48 | 0.4275 | -845.0 | -704.1 | |
| 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. | |