SDO HMI 2011-12-08 08:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 24.56 | 145.37 | 49.74 | 297.19 | -17.06 | 353.72 | -75.32 | 107.60 | 0.9713 | 187.9 | 55.7 | |
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back to the solar disc SDO HMI 2011-12-08 08:58:56 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 |
| 2.73 | 140.85 | 5.64 | 289.06 | -17.78 | 353.65 | -75.39 | 108.33 | 0.9718 | 353.4 | 58.1 | |
| 1.62 | -1.00 | 3.40 | -1.00 | -17.75 | 353.43 | -75.61 | 108.28 | 0.9726 | -248.9 | 999999 | |
| 12.19 | -1.00 | 24.73 | -1.00 | -16.94 | 353.79 | -75.25 | 107.48 | 0.9710 | 546.7 | 999999 | |
| 2.56 | 4.52 | 4.59 | 8.13 | -15.00 | 355.58 | -73.46 | 105.61 | 0.9627 | -345.6 | -108.3 | |
| 5.46 | -1.00 | 11.38 | -1.00 | -17.00 | 353.47 | -75.57 | 107.52 | 0.9723 | -328.2 | 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. | |