SDO HMI 2014-01-17 18:00:24 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.81 | 21.26 | 6.04 | 47.14 | 6.05 | 45.29 | 76.38 | 277.35 | 0.9755 | -314.3 | -189.2 | |
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back to the solar disc SDO HMI 2014-01-17 18:00:24 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 |
| 0.00 | 1.70 | 0.00 | 3.93 | 6.16 | 45.94 | 77.03 | 277.39 | 0.9780 | 277.0 | 216.7 | |
| 0.68 | 12.84 | 1.51 | 28.86 | 5.94 | 45.44 | 76.53 | 277.22 | 0.9760 | -234.0 | -215.8 | |
| 2.13 | 6.72 | 4.53 | 14.35 | 6.25 | 44.82 | 75.91 | 277.61 | 0.9737 | -471.6 | -277.6 | |
| 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. | |