SDO HMI 2014-09-20 17:00:34 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.55 | 37.82 | 10.12 | 62.71 | -14.85 | 250.74 | -69.82 | 108.07 | 0.9549 | 281.6 | 17.4 | |
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back to the solar disc SDO HMI 2014-09-20 17:00:34 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 |
| 6.55 | 29.94 | 10.12 | 46.23 | -15.31 | 252.25 | -68.31 | 108.85 | 0.9485 | 394.3 | 156.7 | |
| 0.00 | 1.33 | 0.00 | 2.95 | -14.80 | 245.89 | -74.68 | 107.00 | 0.9761 | -136.0 | -107.3 | |
| 0.00 | 6.55 | 0.00 | 13.53 | -13.31 | 246.66 | -73.91 | 105.64 | 0.9720 | -442.0 | -327.1 | |
| 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. | |