SDO HMI 2011-10-18 17:59:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.58 | 35.13 | 15.51 | 80.34 | 20.09 | 95.08 | 78.63 | 289.39 | 0.9763 | 248.5 | -36.0 | |
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back to the solar disc SDO HMI 2011-10-18 17:59:01 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 | 1.66 | 0.00 | 5.09 | 19.05 | 98.59 | 82.14 | 288.44 | 0.9878 | 195.0 | 74.0 | |
| 0.00 | 1.57 | 0.00 | 4.94 | 19.24 | 98.87 | 82.42 | 288.65 | 0.9884 | 277.0 | 97.3 | |
| 0.00 | 0.70 | 0.00 | 2.20 | 19.41 | 98.81 | 82.36 | 288.81 | 0.9883 | 44.0 | 66.9 | |
| 0.00 | 4.36 | 0.00 | 12.40 | 19.51 | 97.70 | 81.25 | 288.87 | 0.9853 | -658.0 | -472.9 | |
| 2.18 | 11.24 | 4.65 | 24.27 | 20.64 | 94.23 | 77.78 | 289.92 | 0.9738 | 221.7 | -32.3 | |
| 5.40 | 15.60 | 10.86 | 31.44 | 20.25 | 93.28 | 76.83 | 289.50 | 0.9702 | 364.6 | 153.6 | |
| 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. | |