SDO HMI 2011-08-25 14:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.87 | 10.14 | 1.65 | 5.81 | -18.10 | 354.42 | -16.50 | 147.29 | 0.5013 | 217.9 | -92.9 | |
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back to the solar disc SDO HMI 2011-08-25 14:59:08 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 |
| 0.00 | 1.08 | 0.00 | 0.61 | -18.41 | 356.77 | -14.15 | 151.43 | 0.4870 | 780.0 | 613.1 | |
| 0.00 | 1.08 | 0.00 | 0.61 | -17.36 | 356.13 | -14.79 | 149.22 | 0.4780 | 722.0 | 515.8 | |
| 0.00 | 1.97 | 0.00 | 1.13 | -18.27 | 354.76 | -16.16 | 148.00 | 0.5006 | -811.0 | -540.0 | |
| 2.87 | 3.77 | 1.65 | 2.17 | -18.35 | 353.66 | -17.26 | 146.36 | 0.5105 | 773.0 | 580.4 | |
| 0.00 | 2.24 | 0.00 | 1.29 | -17.72 | 353.49 | -17.43 | 145.37 | 0.5042 | -735.0 | -593.3 | |
| 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. | |