SDO HMI 2011-12-17 19:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 11.99 | 30.62 | 10.27 | 26.13 | 8.34 | 358.29 | 53.88 | 281.13 | 0.8166 | -638.2 | -395.9 | |
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back to the solar disc SDO HMI 2011-12-17 19:58:55 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 |
| 11.99 | 29.34 | 10.27 | 25.12 | 8.32 | 358.44 | 54.03 | 281.08 | 0.8182 | -778.5 | -422.3 | |
| 0.00 | 0.68 | 0.00 | 0.57 | 10.40 | 356.89 | 52.48 | 283.89 | 0.8058 | -425.0 | -390.1 | |
| 0.00 | 0.60 | 0.00 | 0.44 | 6.71 | 351.49 | 47.08 | 280.21 | 0.7413 | 590.0 | 490.7 | |
| 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. | |