SDO HMI 2011-08-12 15:59:10 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 12.18 | 0.00 | 6.87 | -21.05 | 174.40 | -7.78 | 164.80 | 0.4802 | 379.8 | 316.9 | |
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back to the solar disc SDO HMI 2011-08-12 15:59:10 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 | 1.62 | 0.00 | 0.89 | -18.84 | 176.88 | -5.31 | 168.42 | 0.4379 | 848.0 | 760.2 | |
| 0.00 | 2.80 | 0.00 | 1.57 | -20.62 | 175.02 | -7.16 | 165.61 | 0.4715 | 985.0 | 758.0 | |
| 0.00 | 4.78 | 0.00 | 2.69 | -20.74 | 174.53 | -7.66 | 164.73 | 0.4751 | 744.0 | 634.5 | |
| 0.00 | 2.98 | 0.00 | 1.72 | -23.06 | 172.36 | -9.82 | 162.29 | 0.5180 | -1058.0 | -811.3 | |
| 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. | |