SDO HMI 2014-05-18 19:00:38 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.87 | 15.46 | 2.05 | 8.25 | -17.02 | 156.60 | -15.98 | 134.60 | 0.3692 | 341.9 | 158.3 | |
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back to the solar disc SDO HMI 2014-05-18 19:00:38 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 |
| 3.06 | 8.54 | 1.61 | 4.50 | -16.67 | 158.73 | -13.85 | 137.45 | 0.3405 | 1163.8 | 822.4 | |
| 0.00 | 0.72 | 0.00 | 0.38 | -16.59 | 157.46 | -15.11 | 134.86 | 0.3541 | 724.0 | 458.9 | |
| 0.00 | 0.90 | 0.00 | 0.48 | -16.96 | 157.04 | -15.54 | 134.87 | 0.3631 | 504.0 | 320.2 | |
| 0.81 | 5.30 | 0.44 | 2.89 | -17.64 | 153.11 | -19.47 | 130.07 | 0.4168 | -955.0 | -703.6 | |
| 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. | |