SDO HMI 2011-07-17 09:59:11 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 50.47 | 272.73 | 25.56 | 138.15 | 16.48 | 169.24 | -0.15 | 0.65 | 0.2083 | -1098.5 | -378.6 | |
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back to the solar disc SDO HMI 2011-07-17 09:59:11 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 |
| 39.49 | 270.55 | 20.00 | 137.04 | 16.53 | 169.30 | -0.09 | 0.39 | 0.2091 | -1251.0 | -389.2 | |
| 8.26 | -1.00 | 4.18 | -1.00 | 16.07 | 169.27 | -0.12 | 0.56 | 0.2011 | -1383.3 | 999999 | |
| 2.72 | -1.00 | 1.38 | -1.00 | 16.91 | 169.08 | -0.31 | 1.37 | 0.2155 | -834.4 | 999999 | |
| 0.00 | 1.00 | 0.00 | 0.51 | 15.58 | 164.49 | -4.90 | 23.17 | 0.2100 | 843.0 | 672.2 | |
| 0.00 | 1.18 | 0.00 | 0.60 | 17.98 | 163.81 | -5.57 | 21.61 | 0.2519 | 837.0 | 685.4 | |
| 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. | |