SDO HMI 2014-04-23 19:13:20 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.77 | 0.00 | 3.09 | -18.99 | 125.66 | -17.28 | 131.41 | 0.3761 | 436.0 | 360.5 | |
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back to the solar disc SDO HMI 2014-04-23 19:13:20 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 | 1.42 | 0.00 | 0.75 | -18.90 | 126.96 | -15.99 | 133.25 | 0.3594 | 922.0 | 808.2 | |
| 0.00 | 1.86 | 0.00 | 0.99 | -18.39 | 126.44 | -16.50 | 131.29 | 0.3603 | 778.0 | 657.2 | |
| 0.00 | 0.98 | 0.00 | 0.53 | -20.42 | 125.49 | -17.46 | 133.99 | 0.3925 | 838.0 | 663.5 | |
| 0.00 | 1.51 | 0.00 | 0.82 | -18.87 | 123.65 | -19.30 | 128.21 | 0.3997 | -794.0 | -609.2 | |
| 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. | |