SDO HMI 2011-04-25 23:59:06 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.54 | 18.67 | 2.41 | 9.86 | 15.49 | 177.40 | -2.37 | 6.51 | 0.3494 | 478.6 | -183.1 | |
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back to the solar disc SDO HMI 2011-04-25 23:59:06 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 | 7.83 | 0.00 | 4.12 | 14.95 | 178.54 | -1.23 | 3.54 | 0.3386 | -1117.0 | -807.4 | |
| 0.00 | 1.42 | 0.00 | 0.75 | 15.47 | 177.07 | -2.71 | 7.52 | 0.3494 | 734.0 | 533.2 | |
| 2.85 | 4.54 | 1.51 | 2.40 | 15.79 | 176.94 | -2.84 | 7.75 | 0.3549 | 868.5 | 727.4 | |
| 0.00 | 1.24 | 0.00 | 0.66 | 16.40 | 176.90 | -2.88 | 7.62 | 0.3649 | 631.0 | 431.2 | |
| 0.00 | 1.51 | 0.00 | 0.80 | 16.02 | 176.02 | -3.75 | 10.08 | 0.3609 | 823.0 | 536.6 | |
| 1.69 | 2.13 | 0.90 | 1.13 | 15.89 | 175.74 | -4.03 | 10.88 | 0.3597 | 761.8 | 805.4 | |
| 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. | |