SDO HMI 2011-05-01 18:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.46 | 15.41 | 2.40 | 8.23 | 14.02 | 115.40 | 12.15 | 326.99 | 0.3741 | -935.9 | -789.3 | |
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back to the solar disc SDO HMI 2011-05-01 18:59:07 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 |
| 4.46 | 9.27 | 2.40 | 4.98 | 14.21 | 117.00 | 13.75 | 323.63 | 0.3901 | -910.0 | -777.9 | |
| 0.00 | 1.60 | 0.00 | 0.86 | 13.91 | 116.54 | 13.28 | 324.10 | 0.3819 | -1049.0 | -795.7 | |
| 0.00 | 2.85 | 0.00 | 1.50 | 13.69 | 111.74 | 8.49 | 334.85 | 0.3389 | -953.0 | -826.2 | |
| 0.00 | 1.69 | 0.00 | 0.89 | 13.65 | 111.52 | 8.27 | 335.38 | 0.3368 | -868.0 | -753.9 | |
| 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. | |