SDO HMI 2011-12-08 21:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.13 | 0.00 | 3.33 | -18.04 | 77.72 | 15.83 | 219.89 | 0.4057 | -48.0 | -56.7 | |
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back to the solar disc SDO HMI 2011-12-08 21:58:56 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 |
| 0.00 | 1.11 | 0.00 | 0.61 | -18.08 | 80.42 | 18.54 | 224.32 | 0.4344 | 782.0 | 609.3 | |
| 0.00 | 1.70 | 0.00 | 0.93 | -17.62 | 79.07 | 17.18 | 223.02 | 0.4145 | 857.0 | 753.3 | |
| 0.00 | 1.53 | 0.00 | 0.83 | -18.36 | 76.36 | 14.48 | 217.07 | 0.3953 | -788.0 | -559.2 | |
| 0.00 | 1.79 | 0.00 | 0.96 | -18.14 | 75.87 | 13.98 | 216.48 | 0.3878 | -1043.0 | -827.5 | |
| 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. | |