SDO HMI 2011-11-17 10:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 12.46 | 74.81 | 30.46 | 183.16 | 16.05 | 63.28 | 78.56 | 285.86 | 0.9801 | -78.7 | -68.5 | |
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back to the solar disc SDO HMI 2011-11-17 10:58:57 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 |
| 4.64 | 73.61 | 11.59 | 180.20 | 16.06 | 63.48 | 78.76 | 285.87 | 0.9808 | 517.0 | -74.7 | |
| 7.82 | -1.00 | 18.87 | -1.00 | 15.96 | 63.16 | 78.44 | 285.76 | 0.9797 | -466.5 | 999999 | |
| 0.00 | 1.20 | 0.00 | 2.96 | 19.37 | 63.35 | 78.64 | 289.25 | 0.9806 | 336.0 | 243.4 | |
| 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. | |