SDO HMI 2011-12-23 19:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 17.76 | 162.29 | 56.98 | 804.79 | 18.91 | 307.90 | 82.54 | 289.31 | 0.9929 | 3.4 | -66.7 | |
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back to the solar disc SDO HMI 2011-12-23 19:58:55 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 | 5.44 | 0.00 | 18.00 | 16.43 | 305.70 | 80.34 | 286.95 | 0.9892 | 160.0 | -2.2 | |
| 2.38 | 58.46 | 15.54 | 514.41 | 18.89 | 310.19 | 84.83 | 289.11 | 0.9976 | -359.7 | -170.5 | |
| 0.00 | 2.89 | 0.00 | 14.63 | 20.35 | 308.75 | 83.39 | 290.66 | 0.9958 | -391.0 | -333.1 | |
| 4.76 | 95.50 | 13.36 | 257.75 | 18.51 | 303.94 | 78.57 | 289.20 | 0.9850 | -363.9 | 185.3 | |
| 5.69 | -4.00 | 15.33 | -4.00 | 18.53 | 303.49 | 78.12 | 289.26 | 0.9837 | 400.6 | 999999 | |
| 4.93 | -4.00 | 12.75 | -4.00 | 20.24 | 302.85 | 77.48 | 291.06 | 0.9824 | 372.1 | 999999 | |
| 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. | |