SDO HMI 2011-10-21 09:59:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.70 | 15.07 | 1.21 | 21.84 | -12.06 | 49.47 | 68.19 | 255.04 | 0.9398 | -248.7 | -159.1 | |
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back to the solar disc SDO HMI 2011-10-21 09:59:01 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 |
| 0.70 | 5.40 | 1.21 | 9.39 | -12.09 | 53.05 | 71.77 | 255.67 | 0.9598 | 327.4 | 217.8 | |
| 0.00 | 0.70 | 0.00 | 0.89 | -10.78 | 46.77 | 65.49 | 255.90 | 0.9233 | -501.0 | -433.5 | |
| 0.00 | 5.31 | 0.00 | 6.89 | -12.25 | 46.91 | 65.64 | 254.37 | 0.9260 | -390.0 | -368.8 | |
| 0.00 | 3.66 | 0.00 | 4.67 | -11.94 | 46.54 | 65.27 | 254.62 | 0.9233 | -552.0 | -456.7 | |
| 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. | |