SDO HMI 2011-02-13 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 |
| 15.67 | 23.55 | 8.71 | 13.11 | 19.53 | 34.33 | -6.62 | 13.75 | 0.4580 | -319.6 | 51.3 | |
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back to the solar disc SDO HMI 2011-02-13 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 |
| 13.19 | 16.87 | 7.32 | 9.37 | 19.63 | 35.62 | -5.33 | 11.15 | 0.4541 | -1013.6 | -689.3 | |
| 0.00 | 1.20 | 0.00 | 0.67 | 18.91 | 31.42 | -9.53 | 19.96 | 0.4607 | 856.0 | 707.6 | |
| 2.48 | 3.17 | 1.39 | 1.77 | 19.17 | 31.25 | -9.70 | 20.09 | 0.4655 | 945.8 | 909.0 | |
| 0.00 | 1.88 | 0.00 | 1.06 | 19.54 | 30.81 | -10.14 | 20.62 | 0.4732 | 775.0 | 642.6 | |
| 0.00 | 0.43 | 0.00 | 0.24 | 19.95 | 30.62 | -10.33 | 20.64 | 0.4800 | 731.0 | 561.0 | |
| 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. | |