SDO HMI 2011-08-21 12:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 14.30 | 37.96 | 15.34 | 41.01 | 18.96 | 1.60 | -63.28 | 72.17 | 0.8893 | -518.4 | -42.7 | |
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back to the solar disc SDO HMI 2011-08-21 12:59:09 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 |
| 3.78 | 4.77 | 3.95 | 4.99 | 19.14 | 2.46 | -62.42 | 71.94 | 0.8827 | -627.0 | -651.1 | |
| 0.00 | 2.52 | 0.00 | 2.63 | 18.86 | 2.51 | -62.37 | 72.26 | 0.8822 | -712.0 | -628.8 | |
| 0.00 | 0.72 | 0.00 | 0.77 | 19.85 | 1.61 | -63.27 | 71.18 | 0.8894 | -363.0 | -356.5 | |
| 0.00 | 1.35 | 0.00 | 1.42 | 18.83 | 2.18 | -62.70 | 72.31 | 0.8848 | -489.0 | -429.3 | |
| 10.52 | 28.06 | 11.39 | 30.60 | 18.96 | 1.37 | -63.51 | 72.18 | 0.8910 | -478.1 | 126.5 | |
| 0.00 | 0.54 | 0.00 | 0.60 | 17.33 | 0.57 | -64.31 | 74.04 | 0.8966 | -539.0 | -522.7 | |
| 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. | |