SDO HMI 2011-02-15 08:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.40 | 11.66 | 3.15 | 6.75 | 19.68 | 34.10 | 16.20 | 329.45 | 0.5175 | -134.3 | 62.8 | |
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back to the solar disc SDO HMI 2011-02-15 08:58:57 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 |
| 5.40 | 8.14 | 3.15 | 4.75 | 19.68 | 35.83 | 17.93 | 326.68 | 0.5298 | -943.4 | -634.8 | |
| 0.00 | 0.77 | 0.00 | 0.44 | 18.91 | 31.58 | 13.68 | 332.58 | 0.4877 | 667.0 | 563.7 | |
| 0.00 | 1.29 | 0.00 | 0.73 | 19.45 | 30.95 | 13.04 | 334.18 | 0.4907 | 715.0 | 630.4 | |
| 0.00 | 1.46 | 0.00 | 0.83 | 20.25 | 28.34 | 10.43 | 339.45 | 0.4861 | 764.0 | 647.6 | |
| 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. | |