SDO HMI 2011-04-29 09:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.27 | 0.00 | 3.09 | 15.71 | 177.20 | 42.56 | 296.46 | 0.7293 | 155.8 | -42.4 | |
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back to the solar disc SDO HMI 2011-04-29 09:59:07 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 | 1.78 | 0.00 | 1.32 | 15.65 | 178.73 | 44.09 | 295.63 | 0.7454 | -676.0 | -628.0 | |
| 0.00 | 0.53 | 0.00 | 0.39 | 16.12 | 177.47 | 42.83 | 296.84 | 0.7342 | 265.0 | 287.0 | |
| 0.00 | 0.71 | 0.00 | 0.51 | 15.63 | 176.53 | 41.89 | 296.67 | 0.7219 | 523.0 | 445.8 | |
| 0.00 | 1.25 | 0.00 | 0.87 | 15.65 | 175.16 | 40.51 | 297.42 | 0.7071 | 511.0 | 412.4 | |
| 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. | |