SDO HMI 2014-09-07 21:00:36 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.96 | 17.21 | 3.63 | 8.93 | 8.98 | 147.43 | 17.43 | 276.97 | 0.2993 | -975.2 | -660.4 | |
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back to the solar disc SDO HMI 2014-09-07 21:00:36 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 |
| 6.96 | 9.90 | 3.63 | 5.17 | 9.00 | 148.43 | 18.43 | 276.71 | 0.3159 | -1126.1 | -831.3 | |
| 0.00 | 0.89 | 0.00 | 0.46 | 8.77 | 147.26 | 17.27 | 276.24 | 0.2964 | -706.0 | -524.5 | |
| 0.00 | 4.10 | 0.00 | 2.12 | 8.69 | 146.94 | 16.94 | 276.04 | 0.2910 | -718.0 | -489.8 | |
| 0.00 | 2.32 | 0.00 | 1.18 | 9.46 | 143.96 | 13.96 | 280.04 | 0.2428 | -954.0 | -797.6 | |
| 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. | |