SDO HMI 2011-08-18 14:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.31 | 0.00 | 3.88 | 8.18 | 55.64 | -47.78 | 85.10 | 0.7372 | -305.2 | -211.1 | |
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back to the solar disc SDO HMI 2011-08-18 14:59:09 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 | 0.81 | 0.00 | 0.54 | 7.92 | 60.91 | -42.51 | 85.66 | 0.6735 | -594.0 | -506.7 | |
| 0.00 | 1.62 | 0.00 | 1.16 | 8.13 | 56.69 | -46.73 | 85.21 | 0.7257 | -617.0 | -461.3 | |
| 0.00 | 1.62 | 0.00 | 1.19 | 8.28 | 55.30 | -48.12 | 84.95 | 0.7420 | -552.0 | -384.2 | |
| 0.00 | 1.26 | 0.00 | 0.99 | 8.26 | 51.96 | -51.46 | 84.84 | 0.7795 | 542.0 | 451.2 | |
| 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. | |