SDO HMI 2014-07-20 17:00:40 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.27 | 0.00 | 2.32 | -17.34 | 50.84 | -9.09 | 157.84 | 0.4069 | 390.5 | 352.9 | |
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back to the solar disc SDO HMI 2014-07-20 17:00:40 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 |
| 0.00 | 0.73 | 0.00 | 0.38 | -11.84 | 52.89 | -7.04 | 157.27 | 0.3117 | 710.0 | 659.2 | |
| 0.00 | 1.27 | 0.00 | 0.67 | -13.87 | 51.63 | -8.30 | 156.33 | 0.3506 | 788.0 | 628.3 | |
| 0.00 | 1.36 | 0.00 | 0.77 | -23.01 | 50.99 | -8.94 | 162.94 | 0.4894 | 762.0 | 565.4 | |
| 0.00 | 0.91 | 0.00 | 0.50 | -17.47 | 48.00 | -11.93 | 152.44 | 0.4277 | -698.0 | -582.9 | |
| 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. | |