SDO HMI 2011-10-21 07:59:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.88 | 18.81 | 7.64 | 25.63 | -11.89 | 49.12 | 66.75 | 254.93 | 0.9313 | 12.8 | -285.4 | |
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back to the solar disc SDO HMI 2011-10-21 07:59:01 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 |
| 1.05 | 4.88 | 1.73 | 7.99 | -12.10 | 53.29 | 70.92 | 255.51 | 0.9557 | -249.9 | 219.6 | |
| 0.00 | 1.13 | 0.00 | 1.85 | -11.77 | 52.99 | 70.62 | 255.81 | 0.9539 | 299.0 | 218.8 | |
| 2.96 | -1.00 | 4.83 | -1.00 | -12.01 | 52.95 | 70.58 | 255.55 | 0.9540 | 366.7 | 999999 | |
| 0.00 | 1.13 | 0.00 | 1.38 | -10.84 | 46.74 | 64.36 | 255.61 | 0.9159 | -490.0 | -429.2 | |
| 0.87 | 8.97 | 1.08 | 11.12 | -11.92 | 46.77 | 64.40 | 254.45 | 0.9176 | -427.7 | -353.6 | |
| 0.00 | 2.70 | 0.00 | 3.29 | -11.98 | 46.37 | 64.00 | 254.31 | 0.9150 | -550.0 | -518.6 | |
| 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. | |