SDO HMI 2011-11-17 17:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.49 | 44.90 | 15.38 | 84.57 | 9.19 | 55.44 | 74.57 | 278.83 | 0.9636 | -334.3 | 45.1 | |
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back to the solar disc SDO HMI 2011-11-17 17:58:57 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 |
| 2.66 | 21.72 | 5.28 | 44.91 | 10.00 | 56.61 | 75.74 | 279.66 | 0.9693 | -328.3 | 98.0 | |
| 4.89 | 16.05 | 8.88 | 29.37 | 7.92 | 55.24 | 74.37 | 277.50 | 0.9633 | -473.4 | -105.0 | |
| 0.00 | 2.75 | 0.00 | 4.62 | 8.28 | 53.90 | 73.03 | 277.87 | 0.9568 | -63.0 | -75.5 | |
| 0.94 | 4.38 | 1.22 | 5.67 | 10.13 | 48.50 | 67.63 | 279.89 | 0.9257 | 430.8 | 390.7 | |
| 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. | |