SDO HMI 2011-07-12 10:59:11 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.98 | 144.68 | 22.95 | 166.87 | 15.94 | 170.38 | -64.63 | 74.25 | 0.9044 | -596.0 | -138.9 | |
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back to the solar disc SDO HMI 2011-07-12 10:59:11 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 |
| 0.45 | 2.27 | 0.49 | 2.44 | 16.58 | 172.51 | -62.49 | 73.39 | 0.8889 | 398.0 | 284.3 | |
| 19.53 | 140.59 | 22.46 | 162.19 | 15.94 | 170.37 | -64.64 | 74.25 | 0.9045 | -679.6 | -143.7 | |
| 0.00 | 1.82 | 0.00 | 2.24 | 15.07 | 168.43 | -66.57 | 75.31 | 0.9176 | -200.0 | -207.4 | |
| 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. | |