SDO HMI 2011-12-09 16:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 22.23 | 93.52 | 18.97 | 79.29 | 18.49 | 103.35 | 51.88 | 293.13 | 0.8136 | -445.4 | -214.1 | |
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back to the solar disc SDO HMI 2011-12-09 16:58:55 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 |
| 3.15 | 4.94 | 2.77 | 4.34 | 17.17 | 105.34 | 53.86 | 291.04 | 0.8289 | 592.4 | 534.4 | |
| 2.47 | 3.83 | 2.19 | 3.39 | 17.51 | 105.48 | 54.01 | 291.41 | 0.8310 | 541.4 | 487.9 | |
| 0.00 | 0.68 | 0.00 | 0.60 | 17.85 | 105.48 | 54.00 | 291.81 | 0.8316 | 540.0 | 470.4 | |
| 16.61 | 83.39 | 14.01 | 70.41 | 18.63 | 103.12 | 51.65 | 293.36 | 0.8118 | -877.2 | -255.1 | |
| 0.00 | 0.68 | 0.00 | 0.55 | 17.78 | 101.40 | 49.92 | 292.85 | 0.7930 | -418.0 | -436.8 | |
| 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. | |