SDO HMI 2011-12-18 04:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.67 | 0.00 | 4.32 | -17.67 | 323.50 | 24.04 | 233.68 | 0.4834 | 138.0 | -115.8 | |
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back to the solar disc SDO HMI 2011-12-18 04:58:55 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 | 0.77 | 0.00 | 0.44 | -17.24 | 326.34 | 26.88 | 237.28 | 0.5153 | 520.0 | 480.9 | |
| 0.00 | 1.11 | 0.00 | 0.63 | -17.27 | 325.66 | 26.19 | 236.60 | 0.5070 | 825.0 | 624.5 | |
| 0.00 | 1.19 | 0.00 | 0.68 | -17.22 | 324.76 | 25.29 | 235.84 | 0.4952 | 877.0 | 745.1 | |
| 0.00 | 2.98 | 0.00 | 1.67 | -17.92 | 322.48 | 23.02 | 232.24 | 0.4726 | -836.0 | -673.5 | |
| 0.00 | 1.62 | 0.00 | 0.90 | -18.05 | 321.56 | 22.09 | 230.94 | 0.4625 | -696.0 | -542.7 | |
| 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. | |