SDO HMI 2014-07-18 08:00:40 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.18 | 7.36 | 1.34 | 4.49 | -21.97 | 67.01 | -24.34 | 139.10 | 0.5859 | 173.4 | 219.0 | |
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back to the solar disc SDO HMI 2014-07-18 08:00:40 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 |
| 1.45 | 2.63 | 0.89 | 1.60 | -22.29 | 67.51 | -23.84 | 140.04 | 0.5845 | 767.8 | 664.7 | |
| 0.00 | 1.00 | 0.00 | 0.61 | -21.92 | 67.44 | -23.91 | 139.51 | 0.5814 | 674.0 | 487.8 | |
| 0.00 | 1.73 | 0.00 | 1.05 | -21.71 | 67.40 | -23.95 | 139.22 | 0.5796 | 624.0 | 453.0 | |
| 0.73 | 2.00 | 0.45 | 1.23 | -21.80 | 65.83 | -25.52 | 137.58 | 0.5953 | -847.5 | -712.4 | |
| 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. | |