SDO HMI 2011-12-09 19:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 51.78 | 310.57 | 49.15 | 294.77 | -17.20 | 352.87 | -56.95 | 110.18 | 0.8551 | 700.5 | 220.9 | |
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back to the solar disc SDO HMI 2011-12-09 19:58:55 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 |
| 0.00 | 2.04 | 0.00 | 1.90 | -18.84 | 354.05 | -55.77 | 112.32 | 0.8480 | -230.0 | 37.5 | |
| 0.00 | 1.45 | 0.00 | 1.36 | -19.21 | 353.63 | -56.19 | 112.66 | 0.8523 | 483.0 | 373.4 | |
| 0.00 | 0.94 | 0.00 | 0.89 | -19.46 | 353.32 | -56.49 | 112.87 | 0.8553 | 109.0 | 82.5 | |
| 1.70 | 2.30 | 1.63 | 2.20 | -19.78 | 353.10 | -56.72 | 113.18 | 0.8578 | -562.3 | -579.7 | |
| 11.41 | 302.56 | 10.84 | 287.19 | -18.03 | 352.99 | -56.83 | 111.15 | 0.8555 | 788.6 | 223.3 | |
| 0.00 | 1.28 | 0.00 | 1.23 | -17.75 | 352.61 | -57.21 | 110.75 | 0.8582 | 355.0 | 331.8 | |
| 31.94 | -5.00 | 30.23 | -5.00 | -16.82 | 352.89 | -56.93 | 109.74 | 0.8543 | 869.7 | 999999 | |
| 6.73 | -5.00 | 6.45 | -5.00 | -17.25 | 352.51 | -57.31 | 110.16 | 0.8582 | 401.8 | 999999 | |
| 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. | |