SDO HMI 2011-08-12 19:59:10 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.61 | 13.78 | 1.46 | 7.74 | -20.53 | 173.67 | -6.30 | 167.44 | 0.4694 | 105.9 | 228.3 | |
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back to the solar disc SDO HMI 2011-08-12 19:59:10 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 | 2.61 | 0.00 | 1.44 | -18.83 | 176.92 | -3.04 | 173.30 | 0.4325 | 949.0 | 707.4 | |
| 1.71 | 2.43 | 0.96 | 1.36 | -20.58 | 175.00 | -4.96 | 169.90 | 0.4638 | 756.8 | 701.8 | |
| 0.00 | 1.80 | 0.00 | 1.00 | -20.24 | 174.82 | -5.15 | 169.39 | 0.4592 | 941.0 | 746.9 | |
| 0.90 | 2.89 | 0.50 | 1.62 | -20.75 | 174.61 | -5.36 | 169.19 | 0.4676 | 837.6 | 694.4 | |
| 0.00 | 1.17 | 0.00 | 0.67 | -23.03 | 172.33 | -7.64 | 166.03 | 0.5090 | -910.0 | -839.6 | |
| 0.00 | 1.26 | 0.00 | 0.73 | -23.43 | 171.30 | -8.67 | 164.47 | 0.5187 | -695.0 | -488.1 | |
| 0.00 | 1.62 | 0.00 | 0.92 | -18.94 | 166.56 | -13.41 | 152.79 | 0.4817 | -746.0 | -507.6 | |
| 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. | |