SDO HMI 2013-09-17 22:59:04 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 18.19 | 113.81 | 43.22 | 284.20 | -17.51 | 59.06 | -75.37 | 109.61 | 0.9801 | 212.3 | 18.4 | |
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back to the solar disc SDO HMI 2013-09-17 22:59:04 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 |
| 11.89 | 107.24 | 27.84 | 258.66 | -17.59 | 59.73 | -74.70 | 109.81 | 0.9782 | 553.1 | 56.5 | |
| 6.30 | -1.00 | 15.38 | -1.00 | -17.67 | 59.14 | -75.28 | 109.77 | 0.9802 | -331.8 | 999999 | |
| 0.00 | 5.06 | 0.00 | 20.02 | -16.54 | 54.25 | -80.17 | 107.78 | 0.9925 | -457.0 | -311.7 | |
| 0.00 | 1.51 | 0.00 | 5.52 | -16.12 | 54.78 | -79.65 | 107.45 | 0.9912 | -235.0 | -274.9 | |
| 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. | |