SDO HMI 2011-02-28 05:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.36 | 15.01 | 4.71 | 8.49 | -22.14 | 182.82 | -25.51 | 123.96 | 0.4833 | 693.0 | 453.7 | |
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back to the solar disc SDO HMI 2011-02-28 05:58:58 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 | 0.78 | 0.00 | 0.43 | -20.37 | 185.62 | -22.71 | 123.20 | 0.4344 | 788.0 | 640.1 | |
| 0.00 | 0.86 | 0.00 | 0.50 | -25.58 | 182.42 | -25.91 | 129.64 | 0.5140 | 679.0 | 510.8 | |
| 0.00 | 1.12 | 0.00 | 0.64 | -24.39 | 182.47 | -25.86 | 127.69 | 0.5041 | 762.0 | 598.0 | |
| 8.36 | 10.35 | 4.71 | 5.83 | -21.63 | 182.96 | -25.37 | 123.16 | 0.4777 | 954.6 | 723.4 | |
| 0.00 | 0.95 | 0.00 | 0.54 | -23.63 | 182.24 | -26.10 | 126.15 | 0.5011 | 709.0 | 573.5 | |
| 0.00 | 0.95 | 0.00 | 0.55 | -21.77 | 180.43 | -27.90 | 121.36 | 0.5110 | -705.0 | -584.7 | |
| 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. | |