SDO HMI 2011-08-20 07:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.20 | 31.32 | 16.04 | 71.66 | 19.24 | 1.93 | -78.92 | 71.75 | 0.9765 | -275.0 | 50.7 | |
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back to the solar disc SDO HMI 2011-08-20 07:59:09 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 |
| 2.43 | 12.15 | 5.20 | 25.93 | 19.19 | 2.70 | -78.15 | 71.83 | 0.9738 | -504.7 | -354.2 | |
| 0.00 | 2.52 | 0.00 | 5.97 | 19.68 | 1.30 | -79.54 | 71.27 | 0.9787 | 18.0 | 34.8 | |
| 1.35 | -1.00 | 2.94 | -1.00 | 18.94 | 2.48 | -78.37 | 72.08 | 0.9746 | -382.3 | 999999 | |
| 3.42 | 16.65 | 7.90 | 39.76 | 19.26 | 1.58 | -79.27 | 71.72 | 0.9778 | -121.0 | 279.9 | |
| 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. | |