SDO HMI 2011-08-16 20:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.54 | 0.00 | 5.68 | -24.22 | 140.00 | 13.46 | 202.87 | 0.5578 | 731.6 | 609.9 | |
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back to the solar disc SDO HMI 2011-08-16 20:59:09 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 | 0.99 | 0.00 | 0.57 | -19.55 | 143.41 | 16.88 | 212.01 | 0.5182 | 682.0 | 531.1 | |
| 0.00 | 0.90 | 0.00 | 0.52 | -20.98 | 142.49 | 15.95 | 209.13 | 0.5292 | 705.0 | 514.3 | |
| 0.00 | 1.71 | 0.00 | 0.99 | -20.42 | 141.96 | 15.42 | 208.87 | 0.5181 | 783.0 | 520.4 | |
| 0.00 | 1.98 | 0.00 | 1.20 | -25.54 | 141.67 | 15.13 | 203.96 | 0.5821 | 655.0 | 590.3 | |
| 0.00 | 3.96 | 0.00 | 2.40 | -26.93 | 137.00 | 10.46 | 196.33 | 0.5776 | 833.0 | 696.3 | |
| 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. | |