SDO HMI 2011-12-17 14:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.70 | 0.00 | 5.23 | -18.54 | 323.07 | 15.90 | 221.02 | 0.3989 | -118.3 | -136.0 | |
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back to the solar disc SDO HMI 2011-12-17 14:58:55 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 |
| 0.00 | 1.70 | 0.00 | 0.92 | -17.37 | 325.28 | 18.11 | 226.67 | 0.4097 | 801.0 | 713.3 | |
| 0.00 | 1.70 | 0.00 | 0.92 | -17.47 | 324.71 | 17.54 | 225.60 | 0.4040 | 741.0 | 759.7 | |
| 0.00 | 1.02 | 0.00 | 0.57 | -23.16 | 323.34 | 16.17 | 214.32 | 0.4562 | -799.0 | -595.1 | |
| 0.00 | 0.77 | 0.00 | 0.42 | -22.03 | 322.45 | 15.28 | 214.41 | 0.4341 | 636.0 | 478.4 | |
| 0.00 | 2.21 | 0.00 | 1.18 | -17.54 | 321.88 | 14.71 | 220.61 | 0.3737 | -1062.0 | -826.6 | |
| 0.00 | 2.30 | 0.00 | 1.22 | -17.85 | 321.40 | 14.23 | 219.12 | 0.3724 | -1027.0 | -781.9 | |
| 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. | |