SDO HMI 2010-12-29 10:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.25 | 12.48 | 3.92 | 11.82 | -26.60 | 233.07 | -55.79 | 119.82 | 0.8541 | 130.7 | -183.5 | |
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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 | 1.53 | 0.00 | 1.37 | -26.57 | 235.44 | -53.42 | 120.43 | 0.8351 | 428.0 | 351.1 | |
| 4.25 | 5.52 | 3.92 | 5.10 | -25.67 | 233.80 | -55.06 | 118.94 | 0.8464 | 528.6 | 408.1 | |
| 0.00 | 0.59 | 0.00 | 0.59 | -28.03 | 231.39 | -57.46 | 121.01 | 0.8702 | -308.0 | -338.9 | |
| 0.00 | 3.99 | 0.00 | 3.92 | -27.39 | 231.86 | -57.00 | 120.40 | 0.8654 | -791.0 | -504.6 | |
| 0.00 | 0.85 | 0.00 | 0.84 | -27.61 | 231.56 | -57.30 | 120.57 | 0.8681 | -366.0 | -273.5 | |
| 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. | |