SDO HMI 2014-03-09 16:00:28 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.30 | 9.87 | 4.66 | 32.93 | -8.18 | 296.03 | -82.37 | 97.24 | 0.9894 | -16.3 | -46.3 | |
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back to the solar disc SDO HMI 2014-03-09 16:00:28 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 | 2.51 | 0.00 | 6.78 | -6.39 | 298.23 | -80.17 | 95.20 | 0.9841 | 238.0 | 134.8 | |
| 1.30 | 5.20 | 4.66 | 18.61 | -8.76 | 295.37 | -83.03 | 97.89 | 0.9910 | -28.5 | -64.3 | |
| 0.00 | 1.47 | 0.00 | 5.07 | -8.39 | 295.83 | -82.57 | 97.47 | 0.9901 | -137.0 | -178.2 | |
| 0.00 | 0.69 | 0.00 | 2.47 | -8.34 | 295.40 | -83.00 | 97.46 | 0.9911 | -93.0 | -171.0 | |
| 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. | |