SDO HMI 2011-08-12 08:59:10 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.70 | 15.24 | 2.12 | 8.84 | -21.78 | 172.81 | -13.24 | 156.04 | 0.5195 | 483.4 | 76.0 | |
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back to the solar disc SDO HMI 2011-08-12 08:59:10 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 |
| 2.80 | 3.07 | 1.59 | 1.74 | -20.75 | 174.95 | -11.09 | 158.45 | 0.4918 | 889.3 | 664.7 | |
| 0.00 | 3.25 | 0.00 | 1.85 | -20.96 | 174.67 | -11.37 | 158.13 | 0.4963 | 1017.0 | 802.9 | |
| 0.00 | 1.17 | 0.00 | 0.66 | -20.18 | 174.56 | -11.48 | 157.30 | 0.4860 | 816.0 | 647.8 | |
| 0.00 | 1.62 | 0.00 | 0.93 | -20.76 | 174.42 | -11.62 | 157.53 | 0.4950 | 780.0 | 665.6 | |
| 0.90 | 4.78 | 0.53 | 2.81 | -23.09 | 172.46 | -13.58 | 156.24 | 0.5382 | -948.8 | -736.8 | |
| 0.00 | 1.35 | 0.00 | 0.85 | -23.66 | 162.37 | -23.68 | 143.30 | 0.6176 | -566.0 | -525.0 | |
| 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. | |