SDO HMI 2011-10-18 22:59:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.27 | 30.59 | 10.33 | 85.17 | 20.22 | 94.76 | 81.07 | 289.60 | 0.9842 | 158.0 | -61.6 | |
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back to the solar disc SDO HMI 2011-10-18 22:59:01 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 | 0.78 | 0.00 | 3.56 | 19.38 | 99.10 | 85.41 | 288.95 | 0.9947 | 229.0 | 121.9 | |
| 0.00 | 2.70 | 0.00 | 10.40 | 19.31 | 97.76 | 84.07 | 288.80 | 0.9922 | -486.0 | -381.0 | |
| 0.00 | 1.13 | 0.00 | 4.97 | 19.94 | 98.83 | 85.14 | 289.50 | 0.9942 | -47.0 | -56.5 | |
| 0.00 | 13.25 | 0.00 | 35.21 | 20.66 | 94.34 | 80.65 | 290.01 | 0.9834 | -235.0 | -133.7 | |
| 4.27 | 12.73 | 10.33 | 31.03 | 20.17 | 93.09 | 79.40 | 289.48 | 0.9796 | 271.4 | 188.9 | |
| 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. | |