SDO HMI 2014-09-04 01:00:36 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.31 | 42.37 | 38.59 | 265.95 | -12.92 | 97.27 | -83.35 | 103.71 | 0.9965 | 279.5 | 88.6 | |
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back to the solar disc SDO HMI 2014-09-04 01:00:36 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 |
| 0.00 | 4.29 | 0.00 | 57.41 | -15.03 | 95.23 | -85.39 | 105.50 | 0.9992 | 371.0 | 290.2 | |
| 8.31 | 32.00 | 38.59 | 153.68 | -12.21 | 98.49 | -82.13 | 103.18 | 0.9948 | 305.1 | 156.6 | |
| 0.00 | 5.54 | 0.00 | 43.79 | -12.85 | 96.44 | -84.18 | 103.51 | 0.9979 | -210.0 | -268.5 | |
| 0.00 | 0.54 | 0.00 | 11.07 | -12.21 | 94.28 | -86.34 | 102.58 | 0.9995 | -310.0 | -252.5 | |
| 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. | |