SDO HMI 2011-08-16 20:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 10.26 | 53.48 | 20.06 | 96.44 | -20.84 | 56.84 | -69.70 | 114.07 | 0.9605 | 188.5 | 8.3 | |
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back to the solar disc SDO HMI 2011-08-16 20:59:09 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 |
| 1.08 | 47.99 | 1.80 | 82.41 | -21.08 | 58.12 | -68.42 | 114.61 | 0.9556 | 524.4 | 20.8 | |
| 1.62 | -1.00 | 2.73 | -1.00 | -20.99 | 57.76 | -68.78 | 114.42 | 0.9571 | 516.3 | 999999 | |
| 4.32 | -1.00 | 7.29 | -1.00 | -20.64 | 57.66 | -68.88 | 114.04 | 0.9572 | 492.9 | 999999 | |
| 3.24 | 5.49 | 8.24 | 14.03 | -21.18 | 51.46 | -75.08 | 113.24 | 0.9814 | -262.8 | -143.8 | |
| 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. | |