SDO HMI 2011-08-21 00:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.95 | 18.35 | 15.03 | 59.12 | 7.65 | 349.59 | -81.87 | 83.30 | 0.9884 | -104.7 | -130.5 | |
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back to the solar disc SDO HMI 2011-08-21 00:59:09 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 |
| 3.51 | 15.47 | 10.50 | 47.05 | 7.45 | 350.29 | -81.17 | 83.57 | 0.9868 | -227.4 | -146.4 | |
| 1.44 | -1.00 | 4.53 | -1.00 | 7.49 | 349.84 | -81.63 | 83.48 | 0.9880 | 185.6 | 999999 | |
| 0.00 | 1.53 | 0.00 | 6.43 | 8.49 | 347.39 | -84.07 | 82.22 | 0.9934 | -137.0 | -104.5 | |
| 0.00 | 1.35 | 0.00 | 5.64 | 8.25 | 347.44 | -84.03 | 82.47 | 0.9934 | -99.0 | -70.5 | |
| 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. | |