SDO HMI 2011-07-17 21:59:11 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.26 | 28.58 | 11.30 | 99.04 | 24.83 | 79.97 | -82.78 | 65.54 | 0.9897 | -94.4 | -0.1 | |
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back to the solar disc SDO HMI 2011-07-17 21:59:11 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 | 1.63 | 0.00 | 6.08 | 25.70 | 79.12 | -83.62 | 64.64 | 0.9915 | 251.0 | 233.3 | |
| 2.81 | 23.50 | 9.04 | 78.41 | 24.89 | 80.36 | -82.38 | 65.49 | 0.9889 | -293.0 | -77.3 | |
| 0.45 | 1.54 | 2.26 | 7.70 | 24.43 | 77.06 | -85.69 | 65.86 | 0.9953 | 330.6 | 285.7 | |
| 0.00 | 1.91 | 0.00 | 6.85 | 23.78 | 79.47 | -83.27 | 66.59 | 0.9909 | 395.0 | 347.4 | |
| 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. | |