SDO HMI 2011-08-16 18:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.19 | 0.00 | 4.95 | -26.01 | 140.09 | 12.44 | 199.79 | 0.5755 | 667.8 | 601.4 | |
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back to the solar disc SDO HMI 2011-08-16 18:59:09 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 | 1.62 | 0.00 | 0.98 | -25.13 | 143.17 | 15.52 | 204.83 | 0.5791 | 599.0 | 478.2 | |
| 0.00 | 0.99 | 0.00 | 0.60 | -25.32 | 142.32 | 14.68 | 203.50 | 0.5765 | 689.0 | 546.5 | |
| 0.00 | 2.07 | 0.00 | 1.25 | -25.52 | 141.79 | 14.15 | 202.60 | 0.5761 | 661.0 | 557.8 | |
| 0.00 | 3.51 | 0.00 | 2.12 | -26.91 | 137.03 | 9.38 | 194.75 | 0.5731 | 722.0 | 699.9 | |
| 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. | |