SDO HMI 2011-08-17 02:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.40 | 0.00 | 3.34 | -25.59 | 140.95 | 17.71 | 207.37 | 0.6000 | 778.0 | 635.4 | |
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back to the solar disc SDO HMI 2011-08-17 02:59:09 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 | 1.62 | 0.00 | 1.01 | -25.16 | 142.99 | 19.75 | 210.36 | 0.6073 | 705.0 | 543.6 | |
| 0.00 | 1.17 | 0.00 | 0.72 | -24.37 | 142.64 | 19.41 | 210.67 | 0.5956 | 794.0 | 670.8 | |
| 0.00 | 1.08 | 0.00 | 0.67 | -25.57 | 141.63 | 18.40 | 208.29 | 0.6029 | 827.0 | 723.9 | |
| 0.00 | 1.53 | 0.00 | 0.94 | -27.00 | 136.97 | 13.73 | 200.96 | 0.5936 | 786.0 | 643.9 | |
| 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. | |