SDO HMI 2014-04-09 04:00:33 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.21 | 13.93 | 4.97 | 13.30 | 17.86 | 30.61 | 54.43 | 295.15 | 0.8573 | -450.0 | -412.8 | |
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back to the solar disc SDO HMI 2014-04-09 04:00:33 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 | 0.26 | 0.00 | 0.25 | 16.63 | 30.86 | 54.69 | 293.69 | 0.8559 | -409.0 | -331.3 | |
| 1.59 | 13.67 | 1.52 | 13.05 | 17.81 | 30.67 | 54.50 | 295.07 | 0.8577 | -376.2 | -415.4 | |
| 1.15 | -2.00 | 1.09 | -2.00 | 17.61 | 30.58 | 54.41 | 294.87 | 0.8564 | -472.7 | 999999 | |
| 2.47 | -2.00 | 2.36 | -2.00 | 18.06 | 30.57 | 54.39 | 295.38 | 0.8576 | -504.4 | 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. | |