SDO HMI 2011-04-25 23:59:06 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 13.34 | 24.01 | 7.36 | 13.28 | 20.78 | 186.64 | 6.86 | 345.48 | 0.4466 | 513.3 | 178.8 | |
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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 | 3.38 | 0.00 | 1.89 | 20.98 | 189.82 | 10.05 | 339.35 | 0.4639 | -901.0 | -697.0 | |
| 1.87 | 1.87 | 1.03 | 1.03 | 20.62 | 188.13 | 8.36 | 342.33 | 0.4501 | -817.9 | -666.0 | |
| 11.47 | 17.43 | 6.33 | 9.62 | 20.73 | 185.93 | 6.15 | 346.85 | 0.4426 | 942.4 | 613.1 | |
| 0.00 | 1.33 | 0.00 | 0.74 | 21.23 | 185.66 | 5.88 | 347.67 | 0.4492 | 583.0 | 483.7 | |
| 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. | |