SDO HMI 2011-12-04 11:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.97 | 29.02 | 11.09 | 55.65 | 19.68 | 194.36 | 74.25 | 290.26 | 0.9670 | -286.7 | 14.7 | |
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back to the solar disc SDO HMI 2011-12-04 11:58:56 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 |
| 1.19 | 2.39 | 2.03 | 4.07 | 15.03 | 192.73 | 72.61 | 285.57 | 0.9581 | -147.1 | -70.9 | |
| 0.00 | 1.28 | 0.00 | 2.60 | 20.01 | 195.31 | 75.20 | 290.52 | 0.9711 | 208.0 | 176.9 | |
| 0.00 | 1.54 | 0.00 | 2.30 | 15.63 | 190.20 | 70.09 | 286.40 | 0.9454 | -349.0 | -343.7 | |
| 0.00 | 10.24 | 0.00 | 20.86 | 20.42 | 195.26 | 75.15 | 290.95 | 0.9711 | 446.0 | 227.4 | |
| 4.78 | 13.57 | 9.06 | 25.82 | 20.14 | 194.16 | 74.05 | 290.76 | 0.9665 | -446.6 | -215.6 | |
| 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. | |