SDO HMI 2011-12-15 20:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 21.35 | 116.39 | 12.12 | 65.88 | 8.34 | 357.58 | 27.37 | 289.38 | 0.4840 | -571.9 | -312.9 | |
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back to the solar disc SDO HMI 2011-12-15 20:58:55 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 |
| 21.35 | 106.85 | 12.12 | 60.69 | 8.32 | 358.01 | 27.80 | 289.03 | 0.4902 | -1182.3 | -411.6 | |
| 0.00 | 1.11 | 0.00 | 0.61 | 9.58 | 354.22 | 24.01 | 294.32 | 0.4422 | 683.0 | 541.3 | |
| 0.00 | 2.13 | 0.00 | 1.17 | 9.67 | 353.70 | 23.49 | 294.95 | 0.4353 | 464.0 | 537.3 | |
| 0.00 | 2.98 | 0.00 | 1.62 | 8.64 | 352.49 | 22.29 | 293.79 | 0.4116 | 482.0 | 656.8 | |
| 0.00 | 1.11 | 0.00 | 0.60 | 8.07 | 351.94 | 21.74 | 292.98 | 0.4001 | 785.0 | 650.7 | |
| 0.00 | 0.85 | 0.00 | 0.46 | 8.10 | 351.72 | 21.52 | 293.26 | 0.3969 | 721.0 | 688.5 | |
| 0.00 | 1.36 | 0.00 | 0.73 | 6.45 | 350.56 | 20.35 | 290.29 | 0.3701 | 831.0 | 622.2 | |
| 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. | |