SDO HMI 2011-08-25 16:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.96 | 10.06 | 1.69 | 5.70 | -18.04 | 354.43 | -15.39 | 149.02 | 0.4918 | 245.3 | -78.4 | |
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back to the solar disc SDO HMI 2011-08-25 16:59:08 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 |
| 0.00 | 0.99 | 0.00 | 0.56 | -18.43 | 356.85 | -12.96 | 153.50 | 0.4790 | 755.0 | 647.5 | |
| 0.00 | 1.35 | 0.00 | 0.75 | -17.35 | 355.98 | -13.83 | 150.87 | 0.4706 | 782.0 | 597.2 | |
| 0.00 | 1.26 | 0.00 | 0.71 | -18.22 | 354.83 | -14.99 | 149.84 | 0.4908 | -767.0 | -709.1 | |
| 2.96 | 3.86 | 1.69 | 2.20 | -18.33 | 353.76 | -16.06 | 148.22 | 0.5005 | 817.7 | 651.0 | |
| 0.00 | 2.60 | 0.00 | 1.48 | -17.74 | 353.52 | -16.30 | 147.17 | 0.4950 | -756.0 | -644.0 | |
| 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. | |