SDO HMI 2011-12-17 13:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.85 | 0.00 | 4.74 | -17.14 | 323.86 | 16.14 | 223.86 | 0.3850 | -80.5 | -1.3 | |
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back to the solar disc SDO HMI 2011-12-17 13:58:55 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 | 2.47 | 0.00 | 1.33 | -17.40 | 325.26 | 17.53 | 225.72 | 0.4033 | 929.0 | 640.4 | |
| 0.00 | 2.21 | 0.00 | 1.19 | -17.50 | 324.71 | 16.99 | 224.67 | 0.3982 | 590.0 | 713.2 | |
| 0.00 | 1.45 | 0.00 | 0.77 | -15.36 | 323.79 | 16.07 | 227.34 | 0.3645 | -739.0 | -565.0 | |
| 0.00 | 2.72 | 0.00 | 1.45 | -17.54 | 321.92 | 14.20 | 219.64 | 0.3684 | -1102.0 | -881.5 | |
| 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. | |