SDO HMI 2014-07-20 02:00:40 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.45 | 14.61 | 1.82 | 7.71 | 16.53 | 84.98 | 16.80 | 306.76 | 0.3474 | -370.3 | -539.5 | |
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back to the solar disc SDO HMI 2014-07-20 02:00:40 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 |
| 0.82 | 11.43 | 0.43 | 6.04 | 16.57 | 85.29 | 17.12 | 306.36 | 0.3518 | -855.0 | -781.6 | |
| 2.09 | -1.00 | 1.10 | -1.00 | 16.32 | 85.17 | 16.99 | 305.95 | 0.3480 | -1005.7 | 999999 | |
| 0.00 | 1.18 | 0.00 | 0.62 | 16.40 | 84.38 | 16.21 | 307.37 | 0.3383 | -541.0 | -314.8 | |
| 0.54 | 2.00 | 0.29 | 1.05 | 17.13 | 83.88 | 15.71 | 309.95 | 0.3389 | 841.0 | 705.6 | |
| 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. | |