SDO HMI 2011-12-11 18:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 21.28 | 130.85 | 14.02 | 86.34 | 18.17 | 61.63 | 37.61 | 298.69 | 0.6634 | -1053.8 | -376.9 | |
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back to the solar disc SDO HMI 2011-12-11 18:58:55 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 | 1.02 | 0.00 | 0.74 | 21.45 | 66.33 | 42.31 | 300.61 | 0.7304 | -525.0 | -459.5 | |
| 0.00 | 1.02 | 0.00 | 0.72 | 21.25 | 64.81 | 40.80 | 301.12 | 0.7137 | -516.0 | -444.7 | |
| 0.00 | 1.19 | 0.00 | 0.86 | 24.17 | 64.86 | 40.84 | 304.79 | 0.7289 | -547.0 | -443.1 | |
| 21.28 | 127.62 | 14.02 | 84.02 | 18.05 | 61.53 | 37.51 | 298.59 | 0.6617 | -1166.0 | -374.6 | |
| 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. | |