SDO HMI 2014-01-09 23:00:24 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 51.82 | 310.15 | 47.54 | 285.61 | -15.90 | 14.36 | -57.14 | 106.34 | 0.8439 | 942.6 | 197.6 | |
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back to the solar disc SDO HMI 2014-01-09 23:00:24 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 |
| 51.82 | 308.71 | 47.54 | 284.08 | -15.90 | 14.39 | -57.11 | 106.34 | 0.8437 | 981.3 | 198.8 | |
| 0.00 | 0.76 | 0.00 | 0.78 | -16.74 | 10.54 | -60.96 | 106.93 | 0.8771 | 383.0 | 310.1 | |
| 0.00 | 0.68 | 0.00 | 0.75 | -16.66 | 8.26 | -63.24 | 106.65 | 0.8947 | -342.0 | -287.8 | |
| 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. | |