SDO HMI 2011-08-28 16:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.71 | 0.00 | 4.61 | 18.56 | 312.13 | -18.05 | 55.26 | 0.3595 | -286.7 | -30.9 | |
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back to the solar disc SDO HMI 2011-08-28 16:59:08 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 | 1.17 | 0.00 | 0.61 | 15.45 | 313.84 | -16.34 | 61.07 | 0.3112 | 775.0 | 537.7 | |
| 0.00 | 1.88 | 0.00 | 0.99 | 18.81 | 313.16 | -17.02 | 53.10 | 0.3479 | -1095.0 | -896.8 | |
| 0.00 | 0.72 | 0.00 | 0.38 | 19.03 | 313.01 | -17.17 | 52.82 | 0.3518 | -863.0 | -675.4 | |
| 0.00 | 0.90 | 0.00 | 0.47 | 19.04 | 312.60 | -17.58 | 53.37 | 0.3572 | -815.0 | -676.2 | |
| 0.00 | 3.05 | 0.00 | 1.63 | 19.48 | 311.03 | -19.15 | 54.49 | 0.3815 | 919.0 | 779.0 | |
| 0.00 | 0.99 | 0.00 | 0.53 | 18.04 | 310.56 | -19.62 | 58.41 | 0.3764 | -641.0 | -515.5 | |
| 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. | |