SDO HMI 2011-07-23 16:59:11 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.26 | 26.65 | 20.74 | 91.14 | 16.72 | 168.64 | 82.51 | 286.17 | 0.9894 | -64.7 | 28.1 | |
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back to the solar disc SDO HMI 2011-07-23 16:59:11 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 |
| 0.73 | 26.65 | 2.32 | 91.14 | 16.33 | 168.25 | 82.11 | 285.77 | 0.9885 | -258.8 | 28.1 | |
| 2.09 | -1.00 | 7.17 | -1.00 | 16.77 | 169.03 | 82.90 | 286.25 | 0.9903 | 304.1 | 999999 | |
| 3.44 | -1.00 | 11.25 | -1.00 | 16.76 | 168.48 | 82.34 | 286.21 | 0.9890 | -259.7 | 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. | |