SDO HMI 2011-02-27 20:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.73 | 14.29 | 5.74 | 8.54 | -21.88 | 181.54 | -31.73 | 119.07 | 0.5599 | 467.1 | -226.8 | |
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back to the solar disc SDO HMI 2011-02-27 20:58:58 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 |
| 9.73 | 11.37 | 5.74 | 6.70 | -21.57 | 182.64 | -30.63 | 119.17 | 0.5447 | 916.0 | 605.0 | |
| 0.00 | 1.46 | 0.00 | 0.91 | -24.21 | 178.74 | -34.52 | 121.17 | 0.6063 | -856.0 | -747.1 | |
| 0.00 | 1.46 | 0.00 | 0.93 | -21.80 | 176.38 | -36.89 | 116.29 | 0.6239 | -786.0 | -582.2 | |
| 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. | |