SDO HMI 2011-08-28 03:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.86 | 144.16 | 14.94 | 90.42 | 17.71 | 300.07 | -37.26 | 70.17 | 0.6152 | -916.5 | -385.9 | |
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back to the solar disc SDO HMI 2011-08-28 03:59:08 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 |
| 23.86 | 138.69 | 14.94 | 86.82 | 17.71 | 300.22 | -37.11 | 70.13 | 0.6133 | -1159.2 | -409.6 | |
| 0.00 | 0.45 | 0.00 | 0.29 | 20.29 | 298.38 | -38.95 | 66.71 | 0.6441 | -625.0 | -526.6 | |
| 0.00 | 1.79 | 0.00 | 1.15 | 15.95 | 297.81 | -39.51 | 73.54 | 0.6402 | -625.0 | -548.8 | |
| 0.00 | 1.70 | 0.00 | 1.14 | 18.43 | 295.34 | -41.98 | 70.37 | 0.6761 | 521.0 | 489.6 | |
| 0.00 | 1.53 | 0.00 | 1.02 | 18.21 | 295.36 | -41.96 | 70.69 | 0.6753 | 689.0 | 531.1 | |
| 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. | |