SDO HMI 2013-09-18 09:01:20 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 25.65 | 153.97 | 43.35 | 263.53 | -17.59 | 59.17 | -69.74 | 110.87 | 0.9582 | 386.9 | 80.0 | |
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back to the solar disc SDO HMI 2013-09-18 09:01:20 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 |
| 20.06 | 150.25 | 33.68 | 254.71 | -17.61 | 59.48 | -69.43 | 110.96 | 0.9569 | 587.1 | 89.4 | |
| 5.59 | -1.00 | 9.67 | -1.00 | -17.71 | 58.94 | -69.98 | 110.93 | 0.9596 | -200.8 | 999999 | |
| 0.00 | 1.24 | 0.00 | 2.81 | -16.14 | 54.37 | -74.55 | 108.38 | 0.9766 | -276.0 | -306.5 | |
| 0.00 | 2.48 | 0.00 | 6.01 | -16.52 | 53.56 | -75.35 | 108.61 | 0.9796 | -9.0 | -70.1 | |
| 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. | |