SDO HMI 2011-07-17 19:59:11 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 46.00 | 249.02 | 23.38 | 126.69 | 16.48 | 169.19 | 5.34 | 336.68 | 0.2266 | -1278.0 | -423.1 | |
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back to the solar disc SDO HMI 2011-07-17 19:59:11 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 |
| 1.09 | 249.02 | 0.55 | 126.69 | 16.81 | 169.45 | 5.60 | 336.31 | 0.2334 | -948.6 | -423.1 | |
| 32.20 | -1.00 | 16.38 | -1.00 | 16.53 | 169.25 | 5.40 | 336.56 | 0.2277 | -1330.7 | 999999 | |
| 8.35 | -1.00 | 4.24 | -1.00 | 16.13 | 169.21 | 5.35 | 335.97 | 0.2212 | -1452.1 | 999999 | |
| 1.18 | -1.00 | 0.60 | -1.00 | 17.00 | 169.11 | 5.25 | 337.94 | 0.2341 | -860.8 | 999999 | |
| 0.64 | -1.00 | 0.32 | -1.00 | 16.88 | 168.81 | 4.96 | 338.85 | 0.2303 | -765.6 | 999999 | |
| 2.54 | -1.00 | 1.29 | -1.00 | 16.32 | 168.67 | 4.82 | 338.47 | 0.2206 | -895.9 | 999999 | |
| 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. | |