SDO HMI 2014-09-04 09:01:21 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 15.38 | 58.92 | 102.24 | 493.66 | 14.98 | 88.64 | -87.59 | 75.41 | 0.9977 | 56.1 | -101.6 | |
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next observation for the same group /
back to the solar disc SDO HMI 2014-09-04 09:01:21 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 | 0.98 | 0.00 | 7.59 | 16.39 | 87.83 | -88.40 | 73.92 | 0.9983 | 151.0 | 162.4 | |
| 0.27 | 57.94 | 1.83 | 486.07 | 15.79 | 88.35 | -87.88 | 74.57 | 0.9979 | 319.3 | -106.9 | |
| 15.11 | -2.00 | 100.41 | -2.00 | 14.94 | 88.66 | -87.57 | 75.45 | 0.9977 | 50.3 | 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. | |