SDO HMI 2011-08-18 02:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.04 | 0.00 | 4.44 | 8.11 | 53.78 | -56.23 | 84.78 | 0.8281 | 91.0 | 20.2 | |
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back to the solar disc SDO HMI 2011-08-18 02:59:09 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 | 0.81 | 7.75 | 56.65 | -53.36 | 85.39 | 0.7999 | -325.0 | -372.0 | |
| 0.00 | 1.89 | 0.00 | 1.63 | 8.35 | 54.57 | -55.44 | 84.53 | 0.8207 | -381.0 | -280.5 | |
| 0.00 | 0.81 | 0.00 | 0.74 | 8.63 | 52.44 | -57.58 | 84.09 | 0.8411 | 531.0 | 456.2 | |
| 0.00 | 1.35 | 0.00 | 1.26 | 7.73 | 51.71 | -58.30 | 85.11 | 0.8483 | 539.0 | 408.7 | |
| 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. | |