SDO HMI 2014-07-31 16:00:39 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 10.68 | 38.65 | 6.58 | 23.82 | -20.64 | 249.20 | -25.77 | 136.91 | 0.5977 | 879.9 | 527.2 | |
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back to the solar disc SDO HMI 2014-07-31 16:00:39 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 | 1.27 | 0.00 | 0.80 | -23.72 | 249.95 | -25.02 | 141.28 | 0.6214 | 632.0 | 471.1 | |
| 0.00 | 0.27 | 0.00 | 0.17 | -22.86 | 249.10 | -25.87 | 139.41 | 0.6202 | 587.0 | 544.7 | |
| 9.41 | 37.11 | 5.80 | 22.85 | -20.52 | 249.22 | -25.75 | 136.79 | 0.5964 | 999.0 | 529.7 | |
| 1.27 | -3.00 | 0.78 | -3.00 | -20.47 | 248.87 | -26.10 | 136.35 | 0.5993 | 687.6 | 999999 | |
| 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. | |