SDO HMI 2011-04-28 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 |
| 0.00 | 6.51 | 0.00 | 4.27 | 15.59 | 176.28 | 36.14 | 300.05 | 0.6582 | 194.3 | 232.2 | |
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back to the solar disc SDO HMI 2011-04-28 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 | 0.53 | 0.00 | 0.37 | 15.13 | 179.70 | 39.57 | 297.32 | 0.6944 | -619.0 | -551.5 | |
| 0.00 | 1.07 | 0.00 | 0.73 | 15.31 | 179.46 | 39.32 | 297.69 | 0.6926 | -666.0 | -615.4 | |
| 0.00 | 1.16 | 0.00 | 0.76 | 15.47 | 176.32 | 36.18 | 299.81 | 0.6580 | 496.0 | 377.1 | |
| 0.00 | 0.89 | 0.00 | 0.57 | 14.71 | 174.90 | 34.76 | 299.69 | 0.6371 | 645.0 | 563.5 | |
| 0.00 | 1.43 | 0.00 | 0.93 | 16.93 | 175.11 | 34.98 | 302.61 | 0.6533 | 694.0 | 568.2 | |
| 0.00 | 1.43 | 0.00 | 0.91 | 15.29 | 174.36 | 34.23 | 300.88 | 0.6344 | 616.0 | 557.1 | |
| 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. | |