SDO HMI 2011-12-15 07:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.58 | 10.39 | 1.90 | 5.54 | -17.50 | 323.25 | -14.10 | 141.25 | 0.3702 | -108.9 | 74.7 | |
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back to the solar disc SDO HMI 2011-12-15 07:58:55 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 | 1.70 | 0.00 | 0.89 | -16.31 | 326.83 | -10.52 | 146.61 | 0.3200 | 1164.0 | 965.3 | |
| 0.00 | 0.77 | 0.00 | 0.40 | -15.70 | 326.58 | -10.77 | 144.87 | 0.3141 | 882.0 | 771.7 | |
| 0.00 | 0.94 | 0.00 | 0.49 | -16.24 | 323.94 | -13.41 | 139.96 | 0.3477 | 573.0 | 433.8 | |
| 3.58 | 4.17 | 1.90 | 2.22 | -17.32 | 323.07 | -14.29 | 140.23 | 0.3699 | -937.4 | -660.7 | |
| 0.00 | 1.45 | 0.00 | 0.78 | -18.08 | 322.11 | -15.25 | 139.81 | 0.3891 | -880.0 | -678.9 | |
| 0.00 | 1.36 | 0.00 | 0.76 | -20.62 | 318.59 | -18.76 | 138.33 | 0.4547 | -709.0 | -492.4 | |
| 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. | |