SDO HMI 2011-10-11 12:59:02 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.66 | 4.29 | 1.66 | 4.27 | 18.39 | 51.08 | -60.46 | 72.29 | 0.8687 | -190.5 | -232.3 | |
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back to the solar disc SDO HMI 2011-10-11 12:59:02 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 |
| 1.31 | 1.66 | 1.31 | 1.66 | 18.65 | 51.02 | -60.52 | 71.99 | 0.8693 | -283.6 | -370.5 | |
| 0.35 | 1.31 | 0.35 | 1.30 | 18.14 | 51.26 | -60.28 | 72.56 | 0.8671 | -422.2 | -357.7 | |
| 0.00 | 0.44 | 0.00 | 0.45 | 19.95 | 50.13 | -61.41 | 70.57 | 0.8772 | 377.0 | 298.0 | |
| 0.00 | 0.88 | 0.00 | 0.86 | 17.44 | 51.40 | -60.14 | 73.37 | 0.8656 | -323.0 | -313.9 | |
| 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. | |