SDO HMI 2014-04-12 21:00:33 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 3.98 | 0.00 | 2.79 | -10.03 | 241.66 | -45.57 | 98.39 | 0.7129 | 538.8 | 478.8 | |
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back to the solar disc SDO HMI 2014-04-12 21:00:33 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 | 0.79 | 0.00 | 0.54 | -10.12 | 243.57 | -43.66 | 98.61 | 0.6897 | 595.0 | 508.8 | |
| 0.00 | 0.71 | 0.00 | 0.48 | -10.25 | 243.21 | -44.02 | 98.77 | 0.6942 | 517.0 | 434.0 | |
| 0.00 | 0.71 | 0.00 | 0.50 | -10.39 | 241.41 | -45.82 | 98.88 | 0.7163 | 402.0 | 485.8 | |
| 0.00 | 1.77 | 0.00 | 1.27 | -9.77 | 240.37 | -46.86 | 97.97 | 0.7284 | 641.0 | 480.4 | |
| 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. | |