SDO HMI 2011-10-31 15:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.94 | 11.35 | 1.89 | 7.11 | 15.81 | 242.84 | 36.73 | 290.37 | 0.6152 | 487.5 | 399.9 | |
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back to the solar disc SDO HMI 2011-10-31 15:58:59 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 |
| 1.30 | 2.60 | 0.88 | 1.75 | 14.59 | 248.40 | 42.29 | 286.71 | 0.6822 | -732.1 | -558.0 | |
| 1.64 | 5.02 | 1.01 | 3.09 | 15.93 | 241.42 | 35.31 | 290.93 | 0.5974 | 738.7 | 585.7 | |
| 0.00 | 1.13 | 0.00 | 0.69 | 16.08 | 240.77 | 34.66 | 291.44 | 0.5894 | 789.0 | 574.9 | |
| 0.00 | 0.87 | 0.00 | 0.53 | 16.81 | 240.77 | 34.66 | 292.64 | 0.5921 | 723.0 | 631.1 | |
| 0.00 | 1.73 | 0.00 | 1.05 | 16.83 | 240.17 | 34.06 | 292.96 | 0.5845 | 770.0 | 599.3 | |
| 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. | |