SDO HMI 2011-12-15 13:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.25 | 119.21 | 11.11 | 65.31 | 8.35 | 357.66 | 23.59 | 292.02 | 0.4287 | -855.9 | -396.9 | |
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back to the solar disc SDO HMI 2011-12-15 13:58:55 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 |
| 20.25 | 112.66 | 11.11 | 61.83 | 8.32 | 357.93 | 23.86 | 291.69 | 0.4325 | -1320.5 | -467.8 | |
| 0.00 | 3.23 | 0.00 | 1.73 | 9.46 | 354.01 | 19.94 | 298.06 | 0.3828 | 908.0 | 644.6 | |
| 0.00 | 2.38 | 0.00 | 1.26 | 8.88 | 352.08 | 18.01 | 299.02 | 0.3508 | 895.0 | 622.0 | |
| 0.00 | 0.94 | 0.00 | 0.49 | 6.49 | 350.82 | 16.75 | 294.13 | 0.3152 | 792.0 | 639.0 | |
| 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. | |