SDO HMI 2014-09-04 12:00:36 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.20 | 0.00 | 2.33 | -11.94 | 156.46 | -18.13 | 136.26 | 0.4468 | 623.2 | 571.7 | |
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back to the solar disc SDO HMI 2014-09-04 12:00:36 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 | 1.61 | 0.00 | 0.89 | -13.72 | 158.65 | -15.93 | 142.91 | 0.4440 | 739.0 | 582.6 | |
| 0.00 | 1.16 | 0.00 | 0.62 | -6.17 | 156.69 | -17.90 | 126.43 | 0.3813 | 751.0 | 619.1 | |
| 0.00 | 0.54 | 0.00 | 0.31 | -15.77 | 155.43 | -19.16 | 140.56 | 0.4991 | 496.0 | 566.0 | |
| 0.00 | 0.89 | 0.00 | 0.51 | -13.50 | 152.98 | -21.60 | 133.97 | 0.4994 | 507.0 | 498.3 | |
| 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. | |