SDO HMI 2011-08-20 00:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.98 | 7.56 | 1.25 | 4.79 | -18.73 | 113.93 | 29.25 | 227.92 | 0.6255 | -382.8 | -352.6 | |
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back to the solar disc SDO HMI 2011-08-20 00:59:09 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 | 1.08 | 0.00 | 0.71 | -18.78 | 116.80 | 32.12 | 230.47 | 0.6549 | 571.0 | 354.2 | |
| 0.00 | 0.81 | 0.00 | 0.51 | -18.92 | 113.73 | 29.05 | 227.52 | 0.6251 | -563.0 | -419.0 | |
| 0.00 | 1.53 | 0.00 | 0.96 | -18.20 | 113.49 | 28.81 | 228.19 | 0.6164 | -502.0 | -478.4 | |
| 1.98 | 2.88 | 1.25 | 1.82 | -19.01 | 113.49 | 28.81 | 227.18 | 0.6234 | -771.9 | -668.7 | |
| 0.00 | 1.26 | 0.00 | 0.79 | -18.58 | 113.05 | 28.37 | 227.28 | 0.6152 | -551.0 | -560.4 | |
| 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. | |