SDO HMI 2013-08-15 21:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 15.31 | 98.98 | 25.26 | 165.13 | -7.08 | 139.46 | -71.42 | 99.61 | 0.9553 | 380.8 | 56.7 | |
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back to the solar disc SDO HMI 2013-08-15 21:59:08 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 |
| 11.44 | 97.81 | 18.78 | 162.70 | -7.07 | 139.60 | -71.28 | 99.62 | 0.9546 | 625.0 | 60.8 | |
| 3.87 | -1.00 | 6.48 | -1.00 | -7.13 | 139.28 | -71.60 | 99.63 | 0.9563 | -243.4 | 999999 | |
| 0.00 | 1.17 | 0.00 | 2.43 | -7.04 | 135.73 | -75.15 | 98.96 | 0.9722 | -159.0 | -177.1 | |
| 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. | |