SDO HMI 2011-02-27 17:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.49 | 13.69 | 4.50 | 8.32 | -22.22 | 181.66 | -33.26 | 118.71 | 0.5808 | 418.2 | 19.2 | |
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back to the solar disc SDO HMI 2011-02-27 17:58:58 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 | 0.34 | 0.00 | 0.20 | -20.18 | 185.84 | -29.08 | 117.71 | 0.5173 | 592.0 | 616.0 | |
| 7.49 | 9.99 | 4.50 | 6.00 | -21.57 | 182.49 | -32.43 | 118.12 | 0.5677 | 868.2 | 786.4 | |
| 0.00 | 1.03 | 0.00 | 0.65 | -24.41 | 179.30 | -35.62 | 120.89 | 0.6204 | -576.0 | -434.0 | |
| 0.00 | 2.33 | 0.00 | 1.47 | -24.18 | 178.77 | -36.15 | 120.28 | 0.6255 | -786.0 | -641.7 | |
| 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. | |