SDO HMI 2011-01-10 18:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.18 | 149.12 | 27.32 | 175.86 | 31.50 | 183.84 | 57.42 | 307.62 | 0.9089 | -595.6 | -147.0 | |
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back to the solar disc SDO HMI 2011-01-10 18:58:55 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 |
| 20.04 | 139.36 | 23.48 | 163.88 | 31.29 | 183.85 | 57.43 | 307.40 | 0.9084 | -764.9 | -161.6 | |
| 1.27 | 3.14 | 1.65 | 4.09 | 34.26 | 185.63 | 59.21 | 309.80 | 0.9258 | -308.9 | -127.5 | |
| 0.00 | 1.10 | 0.00 | 1.44 | 34.52 | 185.65 | 59.23 | 310.05 | 0.9265 | -104.0 | -99.5 | |
| 0.00 | 1.02 | 0.00 | 1.17 | 34.02 | 181.85 | 55.43 | 310.91 | 0.9049 | 476.0 | 423.3 | |
| 1.87 | 4.50 | 2.19 | 5.28 | 34.48 | 182.19 | 55.77 | 311.24 | 0.9082 | 289.3 | 264.5 | |
| 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. | |