SDO HMI 2011-12-04 12:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.29 | 15.02 | 3.78 | 10.57 | -18.25 | 77.66 | -41.91 | 116.71 | 0.7123 | -119.7 | -14.1 | |
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back to the solar disc SDO HMI 2011-12-04 12:58:56 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 | 4.01 | 0.00 | 2.74 | -17.67 | 79.42 | -40.14 | 116.76 | 0.6903 | 599.0 | 413.6 | |
| 0.00 | 1.11 | 0.00 | 0.76 | -17.43 | 79.12 | -40.44 | 116.28 | 0.6926 | 424.0 | 340.4 | |
| 0.00 | 0.77 | 0.00 | 0.54 | -18.50 | 77.78 | -41.78 | 117.09 | 0.7121 | -619.0 | -491.4 | |
| 1.37 | 1.88 | 0.96 | 1.32 | -17.59 | 77.67 | -41.89 | 115.84 | 0.7096 | 678.0 | 608.2 | |
| 3.92 | 7.25 | 2.82 | 5.21 | -18.82 | 76.50 | -43.07 | 116.93 | 0.7274 | -661.8 | -602.0 | |
| 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. | |