SDO HMI 2011-10-09 20:59:02 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.63 | 77.18 | 7.43 | 59.51 | -11.18 | 180.60 | 47.09 | 249.71 | 0.7684 | 552.1 | 329.1 | |
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back to the solar disc SDO HMI 2011-10-09 20:59:02 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 |
| 1.66 | 74.55 | 1.29 | 57.54 | -11.30 | 180.80 | 47.29 | 249.64 | 0.7708 | 539.2 | 360.0 | |
| 7.97 | -1.00 | 6.14 | -1.00 | -11.07 | 180.66 | 47.15 | 249.87 | 0.7686 | 921.6 | 999999 | |
| 0.00 | 1.49 | 0.00 | 1.15 | -13.80 | 179.83 | 46.31 | 246.16 | 0.7700 | -490.0 | -435.2 | |
| 0.00 | 1.14 | 0.00 | 0.82 | -12.53 | 176.07 | 42.56 | 245.99 | 0.7251 | -658.0 | -491.9 | |
| 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. | |