SDO HMI 2011-12-15 12:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.59 | 121.27 | 11.25 | 66.18 | 8.35 | 357.74 | 23.12 | 292.39 | 0.4220 | -832.7 | -412.4 | |
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back to the solar disc SDO HMI 2011-12-15 12:58:55 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 |
| 10.72 | 116.33 | 5.86 | 63.56 | 8.23 | 358.05 | 23.43 | 291.83 | 0.4258 | -1207.9 | -469.6 | |
| 9.87 | -1.00 | 5.39 | -1.00 | 8.41 | 357.77 | 23.15 | 292.46 | 0.4227 | -1401.4 | 999999 | |
| 0.00 | 2.98 | 0.00 | 1.59 | 9.52 | 353.99 | 19.37 | 298.86 | 0.3752 | 979.0 | 761.1 | |
| 0.00 | 1.19 | 0.00 | 0.63 | 8.92 | 353.42 | 18.80 | 298.10 | 0.3625 | 892.0 | 696.9 | |
| 0.00 | 0.77 | 0.00 | 0.40 | 8.07 | 351.53 | 16.91 | 298.38 | 0.3288 | 895.0 | 645.1 | |
| 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. | |