SDO HMI 2011-09-04 03:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.50 | 0.00 | 5.22 | 15.68 | 289.35 | 44.49 | 285.24 | 0.7019 | 174.5 | -8.0 | |
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back to the solar disc SDO HMI 2011-09-04 03:59:07 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 | 0.54 | 0.00 | 0.39 | 13.10 | 292.34 | 47.48 | 281.18 | 0.7341 | -557.0 | -460.7 | |
| 0.00 | 2.77 | 0.00 | 2.00 | 13.03 | 292.05 | 47.19 | 281.10 | 0.7306 | -829.0 | -673.0 | |
| 0.00 | 0.89 | 0.00 | 0.63 | 16.55 | 289.89 | 45.03 | 286.22 | 0.7086 | 479.0 | 352.2 | |
| 0.00 | 1.07 | 0.00 | 0.72 | 16.75 | 286.84 | 41.99 | 287.03 | 0.6722 | 552.0 | 495.1 | |
| 0.00 | 0.98 | 0.00 | 0.65 | 16.22 | 286.15 | 41.30 | 286.37 | 0.6628 | 691.0 | 594.7 | |
| 0.00 | 1.25 | 0.00 | 0.83 | 21.25 | 285.69 | 40.83 | 293.95 | 0.6691 | 711.0 | 631.7 | |
| 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. | |