SDO HMI 2014-09-20 03:00:34 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.48 | 21.55 | 15.77 | 63.83 | -14.77 | 250.29 | -77.96 | 106.40 | 0.9857 | 205.6 | -70.7 | |
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back to the solar disc SDO HMI 2014-09-20 03:00:34 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 |
| 0.89 | 14.54 | 2.15 | 35.39 | -15.49 | 252.59 | -75.66 | 107.52 | 0.9799 | 285.2 | 177.7 | |
| 5.59 | -1.00 | 13.62 | -1.00 | -15.18 | 252.55 | -75.70 | 107.19 | 0.9799 | 276.2 | 999999 | |
| 0.00 | 5.68 | 0.00 | 22.81 | -14.43 | 247.61 | -80.64 | 105.60 | 0.9927 | -254.0 | -197.3 | |
| 0.00 | 1.33 | 0.00 | 5.63 | -13.35 | 246.90 | -81.35 | 104.42 | 0.9937 | -467.0 | -423.1 | |
| 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. | |