SDO HMI 2011-12-13 10:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.02 | 7.66 | 0.66 | 5.06 | -17.55 | 323.55 | -38.51 | 116.27 | 0.6643 | -249.1 | -238.5 | |
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back to the solar disc SDO HMI 2011-12-13 10:58:55 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 |
| 1.02 | 2.21 | 0.66 | 1.43 | -17.14 | 324.85 | -37.21 | 116.32 | 0.6471 | 598.8 | 671.1 | |
| 0.00 | 1.02 | 0.00 | 0.67 | -17.20 | 324.45 | -37.62 | 116.20 | 0.6522 | 498.0 | 292.7 | |
| 0.00 | 1.28 | 0.00 | 0.85 | -17.56 | 322.93 | -39.13 | 115.97 | 0.6717 | -566.0 | -456.9 | |
| 0.00 | 1.62 | 0.00 | 1.08 | -18.02 | 322.73 | -39.33 | 116.52 | 0.6760 | -852.0 | -699.3 | |
| 0.00 | 1.53 | 0.00 | 1.03 | -17.86 | 322.53 | -39.53 | 116.21 | 0.6777 | -636.0 | -598.7 | |
| 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. | |