SDO HMI 2011-04-29 20:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 10.25 | 22.55 | 8.35 | 18.45 | 15.55 | 177.94 | 49.36 | 293.29 | 0.7980 | -137.3 | -114.4 | |
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back to the solar disc SDO HMI 2011-04-29 20:59:07 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 | 1.07 | 0.00 | 0.91 | 15.55 | 179.64 | 51.06 | 292.68 | 0.8143 | -460.0 | -407.1 | |
| 1.07 | 1.96 | 0.91 | 1.66 | 15.64 | 179.52 | 50.94 | 292.82 | 0.8135 | -565.6 | -503.1 | |
| 0.00 | 2.32 | 0.00 | 1.94 | 15.26 | 179.05 | 50.46 | 292.54 | 0.8078 | -591.0 | -527.2 | |
| 4.54 | 8.11 | 3.75 | 6.70 | 15.98 | 178.26 | 49.68 | 293.68 | 0.8026 | -565.5 | -284.4 | |
| 3.21 | 9.09 | 2.56 | 7.24 | 15.16 | 176.84 | 48.26 | 293.24 | 0.7861 | 600.7 | 409.1 | |
| 1.43 | -5.00 | 1.13 | -5.00 | 15.30 | 176.60 | 48.02 | 293.51 | 0.7842 | 643.8 | 999999 | |
| 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. | |