SDO HMI 2014-09-20 02:00:34 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.50 | 20.31 | 13.95 | 62.20 | -14.89 | 250.55 | -78.25 | 106.47 | 0.9864 | 168.6 | 18.5 | |
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back to the solar disc SDO HMI 2014-09-20 02:00:34 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 |
| 5.50 | 14.98 | 13.95 | 38.19 | -15.14 | 252.62 | -76.18 | 107.07 | 0.9814 | 263.9 | 136.5 | |
| 0.00 | 4.08 | 0.00 | 18.54 | -14.61 | 247.24 | -81.56 | 105.63 | 0.9945 | -104.0 | -40.3 | |
| 0.00 | 0.98 | 0.00 | 4.28 | -14.27 | 247.41 | -81.39 | 105.32 | 0.9941 | -310.0 | -269.5 | |
| 0.00 | 0.27 | 0.00 | 1.19 | -13.38 | 246.98 | -81.82 | 104.37 | 0.9946 | -409.0 | -432.0 | |
| 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. | |