SDO HMI 2011-08-28 02:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 25.29 | 146.40 | 15.94 | 92.51 | 17.71 | 300.05 | -37.82 | 70.34 | 0.6225 | -964.4 | -361.8 | |
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back to the solar disc SDO HMI 2011-08-28 02:59:08 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 |
| 25.29 | 140.38 | 15.94 | 88.53 | 17.70 | 300.21 | -37.67 | 70.31 | 0.6205 | -1137.5 | -382.1 | |
| 0.00 | 0.72 | 0.00 | 0.47 | 20.25 | 298.40 | -39.48 | 66.95 | 0.6505 | -432.0 | -356.2 | |
| 0.00 | 1.35 | 0.00 | 0.87 | 16.22 | 297.84 | -40.03 | 73.23 | 0.6473 | -747.0 | -528.2 | |
| 0.00 | 0.81 | 0.00 | 0.52 | 15.91 | 297.79 | -40.08 | 73.72 | 0.6473 | -547.0 | -453.8 | |
| 0.00 | 3.14 | 0.00 | 2.12 | 18.45 | 295.41 | -42.47 | 70.46 | 0.6819 | 629.0 | 422.0 | |
| 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. | |