SDO HMI 2011-04-25 16:59:06 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.60 | 13.86 | 2.98 | 7.36 | 15.49 | 177.43 | -6.22 | 16.81 | 0.3622 | -9.6 | -205.7 | |
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back to the solar disc SDO HMI 2011-04-25 16:59:06 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 | 2.13 | 0.00 | 1.13 | 15.30 | 178.43 | -5.21 | 14.37 | 0.3547 | -970.0 | -791.7 | |
| 1.78 | 2.31 | 0.94 | 1.22 | 15.11 | 177.94 | -5.71 | 15.82 | 0.3538 | -943.0 | -739.0 | |
| 0.00 | 2.13 | 0.00 | 1.13 | 15.11 | 177.72 | -5.93 | 16.40 | 0.3549 | -897.0 | -709.5 | |
| 0.00 | 0.98 | 0.00 | 0.52 | 15.47 | 176.95 | -6.69 | 18.05 | 0.3642 | 951.0 | 679.3 | |
| 3.82 | 6.31 | 2.04 | 3.36 | 15.83 | 176.88 | -6.77 | 17.93 | 0.3700 | 855.5 | 489.1 | |
| 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. | |