SDO HMI 2011-12-17 03:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 10.22 | 50.80 | 7.28 | 36.19 | 8.42 | 358.23 | 45.04 | 282.90 | 0.7204 | -612.4 | -442.1 | |
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back to the solar disc SDO HMI 2011-12-17 03:58:55 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 |
| 2.47 | 48.59 | 1.77 | 34.70 | 8.41 | 358.62 | 45.44 | 282.78 | 0.7251 | -770.1 | -488.8 | |
| 2.81 | -1.00 | 2.00 | -1.00 | 8.17 | 358.46 | 45.27 | 282.49 | 0.7227 | -894.5 | 999999 | |
| 4.94 | -1.00 | 3.51 | -1.00 | 8.49 | 358.21 | 45.03 | 282.99 | 0.7204 | -1021.3 | 999999 | |
| 0.00 | 1.02 | 0.00 | 0.69 | 9.35 | 355.28 | 42.09 | 284.97 | 0.6870 | 547.0 | 445.6 | |
| 0.00 | 1.19 | 0.00 | 0.80 | 9.27 | 354.14 | 40.96 | 285.21 | 0.6728 | 507.0 | 393.1 | |
| 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. | |