SDO HMI 2013-10-20 05:59:00 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.61 | 5.40 | 1.75 | 17.54 | -21.90 | 146.57 | 78.23 | 246.79 | 0.9885 | -38.1 | 51.4 | |
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back to the solar disc SDO HMI 2013-10-20 05:59:00 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 | 1.31 | 0.00 | 5.70 | -21.53 | 149.11 | 80.77 | 247.54 | 0.9940 | 16.0 | 70.5 | |
| 0.61 | 2.70 | 1.75 | 7.77 | -22.01 | 145.33 | 76.98 | 246.49 | 0.9858 | -69.7 | 22.2 | |
| 0.00 | 1.39 | 0.00 | 4.07 | -22.22 | 145.40 | 77.05 | 246.30 | 0.9861 | -37.0 | 67.7 | |
| 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. | |