SDO HMI 2011-08-19 21:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.72 | 17.54 | 2.48 | 66.09 | 19.29 | 2.37 | -83.97 | 71.38 | 0.9910 | -91.2 | -58.7 | |
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back to the solar disc SDO HMI 2011-08-19 21:59:09 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 | 1.08 | 0.00 | 4.46 | 19.91 | 1.09 | -85.25 | 70.66 | 0.9936 | 126.0 | 63.2 | |
| 0.72 | 13.67 | 2.48 | 50.12 | 19.20 | 2.75 | -83.59 | 71.50 | 0.9902 | -372.9 | -109.8 | |
| 0.00 | 2.07 | 0.00 | 8.66 | 19.65 | 1.05 | -85.28 | 70.92 | 0.9937 | 220.0 | 121.6 | |
| 0.00 | 0.72 | 0.00 | 2.85 | 18.87 | 1.59 | -84.74 | 71.75 | 0.9928 | 79.0 | 55.5 | |
| 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. | |