SDO HMI 2011-02-24 21:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.33 | 21.07 | 11.06 | 44.56 | 16.10 | 178.60 | -73.63 | 71.48 | 0.9731 | 266.1 | 152.4 | |
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back to the solar disc SDO HMI 2011-02-24 21:58:58 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 | 1.29 | 0.00 | 2.94 | 17.33 | 177.74 | -74.48 | 70.41 | 0.9773 | -249.0 | -225.5 | |
| 0.00 | 4.99 | 0.00 | 10.11 | 15.90 | 179.13 | -73.10 | 71.57 | 0.9710 | 446.0 | 397.7 | |
| 1.20 | 6.02 | 2.74 | 13.81 | 17.05 | 177.71 | -74.52 | 70.70 | 0.9772 | -179.5 | -127.1 | |
| 0.00 | 2.75 | 0.00 | 5.57 | 15.49 | 179.08 | -73.15 | 71.99 | 0.9709 | 447.0 | 368.3 | |
| 4.13 | 6.02 | 8.32 | 12.13 | 15.17 | 179.16 | -73.07 | 72.30 | 0.9703 | 431.5 | 289.3 | |
| 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. | |