SDO HMI 2011-12-18 19:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.04 | 139.01 | 24.63 | 148.63 | -18.70 | 352.42 | 61.18 | 249.52 | 0.8878 | 702.4 | 244.0 | |
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back to the solar disc SDO HMI 2011-12-18 19:58:55 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 | 1.19 | 0.00 | 1.34 | -18.75 | 353.93 | 62.70 | 249.69 | 0.8991 | -236.0 | -210.8 | |
| 1.36 | 136.46 | 1.51 | 145.88 | -19.04 | 353.65 | 62.41 | 249.33 | 0.8973 | 164.6 | 247.2 | |
| 21.68 | -2.00 | 23.12 | -2.00 | -18.66 | 352.34 | 61.10 | 249.55 | 0.8872 | 787.8 | 999999 | |
| 0.00 | 1.36 | 0.00 | 1.41 | -20.47 | 351.05 | 59.81 | 247.30 | 0.8798 | 479.0 | 400.4 | |
| 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. | |