SDO HMI 2011-08-16 22:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.21 | 50.06 | 9.94 | 84.15 | -20.77 | 56.94 | -68.49 | 114.29 | 0.9551 | 272.0 | 36.6 | |
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back to the solar disc SDO HMI 2011-08-16 22:59:09 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 |
| 1.62 | 44.66 | 2.60 | 72.40 | -20.96 | 57.73 | -67.70 | 114.66 | 0.9521 | 472.3 | 94.7 | |
| 4.59 | -1.00 | 7.34 | -1.00 | -20.67 | 57.66 | -67.77 | 114.35 | 0.9520 | 506.7 | 999999 | |
| 0.00 | 0.99 | 0.00 | 1.66 | -20.48 | 56.69 | -68.74 | 113.92 | 0.9564 | -397.0 | -363.1 | |
| 0.00 | 0.63 | 0.00 | 1.20 | -19.70 | 54.23 | -71.20 | 112.56 | 0.9663 | -39.0 | -68.6 | |
| 0.00 | 1.08 | 0.00 | 2.54 | -21.32 | 51.37 | -74.06 | 113.59 | 0.9783 | -310.0 | -294.6 | |
| 0.00 | 2.70 | 0.00 | 6.35 | -21.10 | 51.33 | -74.11 | 113.35 | 0.9783 | -409.0 | -278.1 | |
| 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. | |