SDO HMI 2011-08-25 12:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.63 | 56.12 | 21.06 | 139.23 | 13.39 | 292.44 | -79.58 | 77.72 | 0.9801 | -123.7 | 9.1 | |
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back to the solar disc SDO HMI 2011-08-25 12:59:08 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 |
| 1.89 | 56.12 | 4.54 | 139.23 | 13.70 | 292.63 | -79.40 | 77.42 | 0.9794 | -322.4 | 9.1 | |
| 1.26 | -1.00 | 3.09 | -1.00 | 13.69 | 292.28 | -79.74 | 77.40 | 0.9805 | 215.3 | 999999 | |
| 3.41 | -1.00 | 8.27 | -1.00 | 13.22 | 292.55 | -79.47 | 77.90 | 0.9798 | -360.6 | 999999 | |
| 2.07 | -1.00 | 5.16 | -1.00 | 13.21 | 292.21 | -79.81 | 77.88 | 0.9809 | 227.7 | 999999 | |
| 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. | |