SDO HMI 2011-08-04 10:59:10 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.00 | 6.78 | 0.81 | 5.38 | -16.24 | 244.02 | -46.71 | 116.42 | 0.7824 | 207.4 | 280.3 | |
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back to the solar disc SDO HMI 2011-08-04 10:59:10 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 | 2.35 | 0.00 | 1.83 | -16.53 | 245.04 | -45.69 | 117.22 | 0.7737 | 638.0 | 477.7 | |
| 0.00 | 1.36 | 0.00 | 1.06 | -16.34 | 244.96 | -45.77 | 116.96 | 0.7737 | 535.0 | 453.1 | |
| 0.00 | 0.45 | 0.00 | 0.36 | -15.72 | 243.81 | -46.92 | 115.68 | 0.7823 | -316.0 | -318.8 | |
| 0.00 | 0.90 | 0.00 | 0.73 | -16.93 | 243.33 | -47.39 | 116.90 | 0.7918 | 520.0 | 396.1 | |
| 1.00 | 1.72 | 0.81 | 1.40 | -15.57 | 242.40 | -48.33 | 114.89 | 0.7954 | -468.5 | -423.4 | |
| 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. | |