SDO HMI 2011-12-06 16:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 21.31 | 148.24 | 11.41 | 79.35 | 18.82 | 103.33 | 12.32 | 327.72 | 0.3795 | -715.8 | -361.3 | |
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back to the solar disc SDO HMI 2011-12-06 16:58:56 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 |
| 21.31 | 138.70 | 11.41 | 74.30 | 18.83 | 103.57 | 12.56 | 327.18 | 0.3815 | -1357.8 | -443.5 | |
| 0.00 | 1.19 | 0.00 | 0.63 | 18.06 | 100.35 | 9.34 | 333.26 | 0.3445 | 786.0 | 661.5 | |
| 0.00 | 2.73 | 0.00 | 1.44 | 18.30 | 100.23 | 9.23 | 333.88 | 0.3473 | 748.0 | 673.0 | |
| 0.00 | 1.02 | 0.00 | 0.54 | 17.47 | 99.72 | 8.71 | 334.02 | 0.3313 | 868.0 | 628.0 | |
| 0.00 | 3.58 | 0.00 | 1.90 | 19.61 | 99.61 | 8.60 | 337.01 | 0.3623 | 632.0 | 682.0 | |
| 0.00 | 1.02 | 0.00 | 0.54 | 19.02 | 98.07 | 7.06 | 340.18 | 0.3441 | 712.0 | 601.8 | |
| 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. | |