SDO HMI 2014-07-21 13:00:40 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.17 | 0.00 | 3.32 | -17.53 | 51.54 | 2.63 | 186.50 | 0.3868 | 397.5 | 323.0 | |
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back to the solar disc SDO HMI 2014-07-21 13:00:40 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 | 1.00 | 0.00 | 0.54 | -18.10 | 52.64 | 3.73 | 188.98 | 0.3972 | 814.0 | 630.0 | |
| 0.00 | 2.45 | 0.00 | 1.32 | -17.80 | 52.57 | 3.66 | 188.94 | 0.3923 | 770.0 | 620.4 | |
| 0.00 | 1.27 | 0.00 | 0.68 | -16.65 | 52.19 | 3.28 | 188.50 | 0.3730 | 784.0 | 654.7 | |
| 0.00 | 1.45 | 0.00 | 0.78 | -17.46 | 48.47 | -0.44 | 178.89 | 0.3822 | -778.0 | -682.8 | |
| 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. | |