SDO HMI 2014-03-21 23:00:30 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.66 | 4.80 | 3.46 | 10.06 | -10.90 | 293.75 | 77.38 | 260.44 | 0.9728 | -221.7 | -168.4 | |
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back to the solar disc SDO HMI 2014-03-21 23:00:30 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 |
| 1.66 | 2.79 | 3.46 | 5.81 | -10.51 | 293.60 | 77.23 | 260.85 | 0.9723 | -253.6 | -228.9 | |
| 0.00 | 0.70 | 0.00 | 1.48 | -10.78 | 293.83 | 77.46 | 260.55 | 0.9732 | -159.0 | -137.8 | |
| 0.00 | 1.31 | 0.00 | 2.77 | -11.77 | 294.01 | 77.64 | 259.52 | 0.9736 | -174.0 | -133.4 | |
| 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. | |