SDO HMI 2011-12-09 23:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.80 | 91.17 | 19.49 | 84.66 | 18.48 | 103.25 | 55.64 | 292.16 | 0.8475 | -392.1 | -202.7 | |
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back to the solar disc SDO HMI 2011-12-09 23:58:55 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 |
| 2.56 | 3.41 | 2.50 | 3.33 | 17.51 | 105.46 | 57.85 | 290.54 | 0.8644 | 365.1 | 369.6 | |
| 3.07 | 3.92 | 2.99 | 3.81 | 17.26 | 105.33 | 57.73 | 290.29 | 0.8629 | 481.6 | 516.3 | |
| 0.00 | 0.51 | 0.00 | 0.49 | 17.35 | 104.80 | 57.19 | 290.50 | 0.8586 | 558.0 | 515.0 | |
| 15.17 | 83.33 | 14.00 | 77.03 | 18.59 | 103.04 | 55.43 | 292.33 | 0.8459 | -781.7 | -225.3 | |
| 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. | |