SDO HMI 2013-09-17 16:59:04 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 12.15 | 84.35 | 38.45 | 283.44 | -17.49 | 59.31 | -78.43 | 109.01 | 0.9889 | 12.4 | -45.3 | |
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back to the solar disc SDO HMI 2013-09-17 16:59:04 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 |
| 6.21 | 81.33 | 19.17 | 265.44 | -17.54 | 59.85 | -77.88 | 109.16 | 0.9877 | 368.8 | -21.5 | |
| 5.94 | -1.00 | 19.28 | -1.00 | -17.57 | 59.33 | -78.41 | 109.10 | 0.9890 | -321.7 | 999999 | |
| 0.00 | 3.02 | 0.00 | 18.00 | -16.47 | 55.13 | -82.61 | 107.32 | 0.9966 | -379.0 | -344.9 | |
| 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. | |