SDO HMI 2011-12-12 17:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.79 | 0.00 | 5.68 | 10.79 | 40.62 | 29.23 | 291.97 | 0.5217 | 457.4 | 433.4 | |
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back to the solar disc SDO HMI 2011-12-12 17:58:55 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 | 1.28 | 0.00 | 0.76 | 12.70 | 42.60 | 31.21 | 294.26 | 0.5567 | -784.0 | -626.2 | |
| 0.00 | 3.49 | 0.00 | 2.00 | 7.28 | 40.38 | 28.99 | 285.69 | 0.5014 | 753.0 | 590.2 | |
| 0.00 | 1.02 | 0.00 | 0.58 | 7.88 | 39.81 | 28.42 | 287.14 | 0.4954 | 742.0 | 618.7 | |
| 0.00 | 1.11 | 0.00 | 0.64 | 12.78 | 40.27 | 28.88 | 295.96 | 0.5260 | 780.0 | 565.8 | |
| 0.00 | 2.89 | 0.00 | 1.70 | 14.30 | 40.44 | 29.05 | 298.47 | 0.5373 | 796.0 | 609.7 | |
| 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. | |