SDO HMI 2014-12-04 21:00:25 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.94 | 15.02 | 2.39 | 45.23 | -15.29 | 129.29 | 80.03 | 254.41 | 0.9864 | 75.1 | 48.0 | |
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back to the solar disc SDO HMI 2014-12-04 21:00:25 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 | 4.44 | 0.00 | 18.02 | -15.33 | 131.88 | 82.61 | 254.49 | 0.9931 | 34.0 | -30.1 | |
| 0.00 | 0.26 | 0.00 | 0.68 | -15.11 | 128.00 | 78.73 | 254.52 | 0.9833 | -231.0 | -202.0 | |
| 0.94 | 10.32 | 2.39 | 26.53 | -15.26 | 127.57 | 78.31 | 254.35 | 0.9820 | 220.5 | 113.4 | |
| 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. | |