SDO HMI 2011-12-09 21:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.36 | 89.19 | 18.55 | 80.59 | 18.51 | 103.24 | 54.53 | 292.46 | 0.8379 | -436.2 | -226.4 | |
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back to the solar disc SDO HMI 2011-12-09 21:58:55 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 |
| 3.41 | 4.26 | 3.22 | 4.02 | 17.23 | 105.33 | 56.62 | 290.48 | 0.8535 | 489.4 | 405.9 | |
| 2.21 | 2.81 | 2.10 | 2.67 | 17.51 | 105.46 | 56.75 | 290.78 | 0.8551 | 476.6 | 352.0 | |
| 14.74 | 81.35 | 13.23 | 73.20 | 18.59 | 103.05 | 54.34 | 292.60 | 0.8363 | -809.5 | -238.9 | |
| 0.00 | 0.77 | 0.00 | 0.70 | 21.65 | 103.21 | 54.50 | 296.10 | 0.8448 | -395.0 | -350.8 | |
| 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. | |