SDO HMI 2014-03-31 03:00:32 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.91 | 118.84 | 49.57 | 293.39 | -13.04 | 175.08 | 79.60 | 257.98 | 0.9805 | 187.1 | 108.8 | |
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back to the solar disc SDO HMI 2014-03-31 03:00:32 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 |
| 8.16 | 36.75 | 21.27 | 94.93 | -11.96 | 175.62 | 80.14 | 259.04 | 0.9826 | 17.5 | 23.4 | |
| 0.00 | 1.40 | 0.00 | 3.22 | -11.64 | 174.07 | 78.59 | 259.48 | 0.9774 | 470.0 | 409.2 | |
| 11.75 | 80.08 | 28.30 | 194.21 | -13.59 | 174.86 | 79.38 | 257.44 | 0.9797 | 318.8 | 142.7 | |
| 0.00 | 0.61 | 0.00 | 1.03 | -13.95 | 169.37 | 73.89 | 257.40 | 0.9567 | -212.0 | -178.3 | |
| 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. | |