SDO HMI 2011-02-24 15:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.46 | 25.37 | 3.78 | 68.72 | 15.94 | 178.68 | -76.85 | 72.26 | 0.9839 | 209.8 | 294.7 | |
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back to the solar disc SDO HMI 2011-02-24 15:58:58 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 | 0.95 | 0.00 | 2.82 | 17.28 | 177.94 | -77.59 | 71.05 | 0.9868 | -261.0 | -179.5 | |
| 0.00 | 2.84 | 0.00 | 8.54 | 16.95 | 177.83 | -77.71 | 71.40 | 0.9869 | -200.0 | -101.4 | |
| 0.00 | 5.33 | 0.00 | 13.90 | 15.80 | 179.18 | -76.35 | 72.30 | 0.9824 | 438.0 | 370.0 | |
| 0.00 | 7.05 | 0.00 | 19.83 | 16.29 | 178.30 | -77.24 | 71.97 | 0.9853 | 418.0 | 417.4 | |
| 1.46 | 9.20 | 3.78 | 23.63 | 15.19 | 179.10 | -76.43 | 72.93 | 0.9822 | 327.4 | 357.2 | |
| 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. | |