SDO HMI 2011-08-28 13:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.33 | 11.83 | 1.24 | 6.35 | 19.13 | 312.23 | -19.61 | 55.82 | 0.3848 | -316.1 | 99.5 | |
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back to the solar disc SDO HMI 2011-08-28 13:59:08 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 |
| 2.33 | 4.39 | 1.24 | 2.34 | 18.81 | 313.10 | -18.74 | 55.49 | 0.3706 | -906.6 | -673.3 | |
| 0.00 | 2.24 | 0.00 | 1.20 | 19.02 | 312.90 | -18.93 | 55.25 | 0.3749 | -735.0 | -583.4 | |
| 0.00 | 5.20 | 0.00 | 2.81 | 19.45 | 311.21 | -20.62 | 56.33 | 0.4008 | 835.0 | 692.8 | |
| 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. | |