SDO HMI 2010-12-28 23:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.78 | 6.62 | 1.98 | 7.32 | -26.62 | 233.47 | -61.39 | 118.61 | 0.8958 | 98.4 | 54.6 | |
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back to the solar disc SDO HMI 2010-12-28 23:58:55 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 | 1.02 | 0.00 | 1.07 | -26.44 | 235.04 | -59.82 | 118.72 | 0.8847 | 531.0 | 381.6 | |
| 0.00 | 0.93 | 0.00 | 0.98 | -26.27 | 234.98 | -59.88 | 118.53 | 0.8848 | 478.0 | 387.6 | |
| 0.00 | 1.02 | 0.00 | 1.17 | -27.85 | 232.47 | -62.39 | 119.76 | 0.9044 | -401.0 | -358.4 | |
| 0.00 | 0.59 | 0.00 | 0.69 | -27.71 | 232.25 | -62.62 | 119.57 | 0.9056 | -388.0 | -335.3 | |
| 1.78 | 3.06 | 1.98 | 3.41 | -26.14 | 233.13 | -61.73 | 118.01 | 0.8975 | 186.0 | 106.6 | |
| 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. | |