SDO HMI 2011-12-07 19:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.49 | 11.58 | 2.05 | 6.83 | -16.16 | 47.38 | -28.79 | 121.15 | 0.5427 | 263.8 | 261.4 | |
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back to the solar disc SDO HMI 2011-12-07 19:58:56 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 | 1.87 | 0.00 | 1.10 | -16.10 | 48.16 | -28.01 | 121.69 | 0.5324 | 770.0 | 598.1 | |
| 0.00 | 1.36 | 0.00 | 0.80 | -16.01 | 47.86 | -28.31 | 121.28 | 0.5356 | 770.0 | 641.1 | |
| 3.49 | 5.80 | 2.05 | 3.40 | -16.07 | 47.50 | -28.67 | 121.09 | 0.5405 | 767.4 | 733.4 | |
| 0.00 | 1.02 | 0.00 | 0.61 | -17.74 | 47.22 | -28.95 | 123.56 | 0.5555 | -712.0 | -556.1 | |
| 0.00 | 1.53 | 0.00 | 0.92 | -15.64 | 45.70 | -30.47 | 119.01 | 0.5606 | -805.0 | -625.6 | |
| 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. | |