SDO HMI 2011-11-18 19:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 14.07 | 37.93 | 14.23 | 38.52 | 7.85 | 265.75 | -60.83 | 82.38 | 0.8746 | -211.1 | -141.5 | |
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back to the solar disc SDO HMI 2011-11-18 19:58:57 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 | 1.29 | 0.00 | 1.28 | 8.38 | 266.49 | -60.10 | 81.75 | 0.8686 | 517.0 | 467.4 | |
| 1.37 | 2.66 | 1.39 | 2.69 | 8.83 | 265.81 | -60.77 | 81.25 | 0.8745 | 523.5 | 446.5 | |
| 8.67 | 26.43 | 8.70 | 26.56 | 7.55 | 266.08 | -60.50 | 82.71 | 0.8719 | -712.6 | -247.1 | |
| 4.03 | 6.52 | 4.14 | 6.70 | 8.70 | 265.41 | -61.17 | 81.42 | 0.8777 | 428.4 | 22.8 | |
| 0.00 | 1.03 | 0.00 | 1.29 | 6.93 | 259.78 | -66.80 | 83.52 | 0.9200 | -245.0 | -202.5 | |
| 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. | |