SDO HMI 2014-08-09 23:00:39 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.69 | 0.00 | 2.76 | -26.11 | 147.82 | -4.26 | 172.85 | 0.5470 | 331.8 | 480.5 | |
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back to the solar disc SDO HMI 2014-08-09 23:00:39 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 | 1.44 | 0.00 | 0.85 | -26.59 | 149.25 | -2.83 | 175.35 | 0.5477 | 764.0 | 583.7 | |
| 0.00 | 0.90 | 0.00 | 0.53 | -26.59 | 149.08 | -3.00 | 175.07 | 0.5479 | 447.0 | 451.3 | |
| 0.00 | 2.08 | 0.00 | 1.22 | -26.27 | 148.47 | -3.61 | 174.03 | 0.5441 | 656.0 | 567.5 | |
| 0.00 | 0.27 | 0.00 | 0.16 | -20.76 | 131.10 | -20.98 | 143.29 | 0.5623 | -540.0 | -624.3 | |
| 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. | |