SDO HMI 2014-09-20 14:00:34 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.80 | 45.37 | 22.01 | 151.53 | -10.79 | 242.45 | -79.78 | 102.11 | 0.9888 | 226.3 | 69.6 | |
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back to the solar disc SDO HMI 2014-09-20 14:00:34 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 | 4.70 | 0.00 | 26.27 | -13.51 | 239.32 | -82.90 | 104.34 | 0.9963 | 43.0 | -2.3 | |
| 7.80 | 25.87 | 22.01 | 73.65 | -9.55 | 243.82 | -78.40 | 101.08 | 0.9851 | 266.8 | 121.2 | |
| 0.00 | 14.09 | 0.00 | 48.16 | -11.15 | 242.25 | -79.98 | 102.43 | 0.9900 | 100.0 | 81.9 | |
| 0.00 | 0.71 | 0.00 | 3.45 | -11.65 | 239.68 | -82.54 | 102.55 | 0.9953 | -356.0 | -326.5 | |
| 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. | |