SDO HMI 2011-02-16 19:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.46 | 18.52 | 11.70 | 27.60 | 19.41 | 65.21 | 66.52 | 293.50 | 0.9432 | -21.3 | 246.5 | |
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back to the solar disc SDO HMI 2011-02-16 19:58:57 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 |
| 3.86 | 6.26 | 6.96 | 11.32 | 18.41 | 69.26 | 70.58 | 291.44 | 0.9626 | -277.2 | -57.2 | |
| 0.00 | 0.43 | 0.00 | 0.77 | 18.67 | 69.04 | 70.35 | 291.75 | 0.9619 | -353.0 | -329.6 | |
| 1.20 | 9.00 | 1.59 | 11.75 | 20.15 | 62.24 | 63.55 | 295.01 | 0.9291 | 458.2 | 451.8 | |
| 1.46 | 2.83 | 1.93 | 3.76 | 20.34 | 62.24 | 63.55 | 295.21 | 0.9295 | 336.1 | 208.2 | |
| 0.94 | -3.00 | 1.22 | -3.00 | 20.09 | 61.70 | 63.01 | 295.10 | 0.9258 | 520.5 | 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. | |