SDO HMI 2011-12-04 23:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 32.25 | 50.68 | 20.83 | 32.88 | -18.45 | 77.39 | -36.10 | 119.95 | 0.6475 | -18.1 | -320.8 | |
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back to the solar disc SDO HMI 2011-12-04 23:58:56 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 | 1.37 | 0.00 | 0.85 | -17.21 | 79.76 | -33.74 | 119.65 | 0.6127 | 725.0 | 603.5 | |
| 0.00 | 1.02 | 0.00 | 0.73 | -27.98 | 75.41 | -38.08 | 131.06 | 0.7247 | -393.0 | -324.4 | |
| 16.47 | 19.45 | 10.46 | 12.35 | -17.37 | 78.56 | -34.94 | 119.13 | 0.6280 | 866.2 | 586.3 | |
| 0.00 | 0.43 | 0.00 | 0.28 | -18.78 | 77.66 | -35.84 | 120.60 | 0.6463 | -584.0 | -514.0 | |
| 15.78 | 28.41 | 10.37 | 18.67 | -18.85 | 76.59 | -36.90 | 120.06 | 0.6589 | -891.0 | -616.0 | |
| 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. | |