SDO HMI 2011-08-30 20:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 32.50 | 175.99 | 16.41 | 88.92 | 18.28 | 299.56 | -1.98 | 9.59 | 0.1968 | -1174.3 | -430.1 | |
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back to the solar disc SDO HMI 2011-08-30 20:59:08 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 |
| 0.00 | 1.07 | 0.00 | 0.54 | 16.50 | 304.54 | 2.99 | 342.85 | 0.1707 | -789.0 | -625.0 | |
| 31.78 | 166.77 | 16.05 | 84.26 | 18.29 | 299.66 | -1.88 | 9.18 | 0.1964 | -1273.5 | -412.4 | |
| 0.00 | 1.52 | 0.00 | 0.77 | 17.48 | 297.29 | -4.26 | 21.55 | 0.1936 | -982.0 | -767.4 | |
| 0.72 | 2.60 | 0.36 | 1.31 | 18.34 | 297.01 | -4.53 | 21.14 | 0.2090 | -934.1 | -773.6 | |
| 0.00 | 3.40 | 0.00 | 1.72 | 18.55 | 296.85 | -4.70 | 21.44 | 0.2134 | -871.0 | -691.6 | |
| 0.00 | 0.63 | 0.00 | 0.32 | 18.36 | 296.60 | -4.95 | 22.82 | 0.2121 | -790.0 | -620.1 | |
| 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. | |