SDO HMI 2011-10-20 10:59:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 42.60 | 280.02 | 44.52 | 292.64 | 27.62 | 54.69 | 60.77 | 298.53 | 0.8819 | -735.5 | -146.3 | |
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back to the solar disc SDO HMI 2011-10-20 10:59:01 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 |
| 4.70 | 273.14 | 5.00 | 285.93 | 27.70 | 55.31 | 61.39 | 298.52 | 0.8865 | 321.5 | -136.2 | |
| 37.90 | -1.00 | 39.52 | -1.00 | 27.62 | 54.67 | 60.75 | 298.53 | 0.8818 | -885.3 | 999999 | |
| 0.00 | 1.57 | 0.00 | 1.55 | 27.37 | 52.76 | 58.84 | 298.57 | 0.8673 | -451.0 | -418.8 | |
| 0.00 | 3.57 | 0.00 | 3.48 | 27.18 | 52.27 | 58.35 | 298.44 | 0.8633 | -707.0 | -560.9 | |
| 0.00 | 0.87 | 0.00 | 0.86 | 27.97 | 52.69 | 58.77 | 299.27 | 0.8678 | -656.0 | -538.1 | |
| 0.00 | 0.87 | 0.00 | 0.82 | 27.81 | 50.95 | 57.03 | 299.42 | 0.8541 | -493.0 | -421.7 | |
| 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. | |