SDO HMI 2011-05-31 19:59:10 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 15.62 | 91.66 | 8.17 | 47.96 | 16.73 | 58.91 | -7.02 | 21.27 | 0.3239 | -1139.8 | -483.5 | |
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back to the solar disc SDO HMI 2011-05-31 19:59:10 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 |
| 15.62 | 87.23 | 8.17 | 45.61 | 16.67 | 59.06 | -6.87 | 20.95 | 0.3219 | -1254.1 | -479.6 | |
| 0.00 | 1.99 | 0.00 | 1.05 | 18.92 | 58.29 | -7.64 | 20.49 | 0.3608 | -601.0 | -531.6 | |
| 0.00 | 2.44 | 0.00 | 1.30 | 17.00 | 53.99 | -11.94 | 33.00 | 0.3649 | -744.0 | -556.4 | |
| 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. | |