SDO HMI 2011-08-25 17:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.06 | 8.26 | 1.18 | 4.67 | -18.00 | 354.57 | -14.69 | 150.13 | 0.4861 | 206.5 | 99.6 | |
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back to the solar disc SDO HMI 2011-08-25 17:59:08 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 | 1.26 | 0.00 | 0.71 | -18.37 | 356.92 | -12.34 | 154.56 | 0.4740 | 845.0 | 657.4 | |
| 0.00 | 1.17 | 0.00 | 0.65 | -17.30 | 355.96 | -13.30 | 151.75 | 0.4661 | 808.0 | 617.8 | |
| 0.00 | 0.54 | 0.00 | 0.30 | -18.20 | 354.84 | -14.42 | 150.76 | 0.4863 | -814.0 | -561.2 | |
| 2.06 | 3.05 | 1.18 | 1.74 | -18.27 | 353.77 | -15.49 | 149.07 | 0.4953 | 843.0 | 778.5 | |
| 0.00 | 2.24 | 0.00 | 1.27 | -17.74 | 353.56 | -15.70 | 148.14 | 0.4903 | -764.0 | -616.6 | |
| 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. | |