SDO HMI 2013-09-18 05:59:05 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 25.30 | 144.31 | 46.81 | 271.57 | -17.57 | 59.29 | -71.29 | 110.50 | 0.9650 | 356.5 | 64.1 | |
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back to the solar disc SDO HMI 2013-09-18 05:59:05 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 |
| 18.64 | 141.12 | 34.18 | 262.90 | -17.60 | 59.61 | -70.97 | 110.60 | 0.9638 | 621.8 | 77.0 | |
| 6.66 | -1.00 | 12.63 | -1.00 | -17.63 | 59.08 | -71.50 | 110.51 | 0.9661 | -264.9 | 999999 | |
| 0.00 | 2.66 | 0.00 | 7.30 | -16.57 | 53.79 | -76.79 | 108.39 | 0.9841 | -265.0 | -251.0 | |
| 0.00 | 0.53 | 0.00 | 1.37 | -16.06 | 54.29 | -76.29 | 107.97 | 0.9823 | -242.0 | -282.2 | |
| 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. | |