SDO HMI 2011-12-07 20:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.81 | 11.59 | 1.64 | 6.79 | -16.23 | 47.45 | -28.17 | 121.77 | 0.5354 | 293.3 | 330.2 | |
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back to the solar disc SDO HMI 2011-12-07 20:58:56 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 | 1.70 | 0.00 | 0.99 | -16.11 | 48.13 | -27.49 | 122.14 | 0.5259 | 746.0 | 621.7 | |
| 0.00 | 0.94 | 0.00 | 0.55 | -15.98 | 47.90 | -27.72 | 121.74 | 0.5278 | 772.0 | 673.5 | |
| 0.00 | 1.45 | 0.00 | 0.86 | -17.68 | 47.31 | -28.31 | 124.01 | 0.5472 | -332.0 | -336.9 | |
| 2.81 | 6.39 | 1.64 | 3.73 | -16.08 | 47.54 | -28.08 | 121.59 | 0.5331 | 772.0 | 684.9 | |
| 0.00 | 1.11 | 0.00 | 0.66 | -15.62 | 45.68 | -29.94 | 119.36 | 0.5537 | -798.0 | -652.2 | |
| 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. | |