SDO HMI 2011-08-17 13:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.65 | 0.00 | 4.83 | -23.88 | 140.41 | 23.22 | 215.80 | 0.6203 | 667.8 | 568.3 | |
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back to the solar disc SDO HMI 2011-08-17 13:59:09 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 |
| 0.00 | 1.26 | 0.00 | 0.82 | -24.56 | 142.82 | 25.62 | 217.70 | 0.6454 | 618.0 | 497.9 | |
| 0.00 | 0.72 | 0.00 | 0.46 | -24.48 | 142.58 | 25.38 | 217.53 | 0.6427 | 625.0 | 575.6 | |
| 0.00 | 1.08 | 0.00 | 0.70 | -24.80 | 142.61 | 25.42 | 217.24 | 0.6461 | 643.0 | 530.3 | |
| 0.00 | 1.98 | 0.00 | 1.22 | -20.71 | 141.59 | 24.40 | 220.58 | 0.5961 | 735.0 | 627.6 | |
| 0.00 | 0.72 | 0.00 | 0.43 | -20.44 | 137.34 | 20.15 | 215.65 | 0.5558 | 686.0 | 536.9 | |
| 0.00 | 1.89 | 0.00 | 1.20 | -27.10 | 136.56 | 19.37 | 208.19 | 0.6271 | 700.0 | 586.6 | |
| 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. | |