SDO HMI 2011-10-19 16:02:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 21.25 | 140.33 | 14.97 | 98.74 | -26.92 | 36.84 | 32.51 | 222.47 | 0.7119 | 1006.1 | 289.6 | |
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back to the solar disc SDO HMI 2011-10-19 16:02:01 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 |
| 21.25 | 135.80 | 14.97 | 95.70 | -26.91 | 36.99 | 32.66 | 222.62 | 0.7130 | 1065.7 | 279.8 | |
| 0.00 | 1.39 | 0.00 | 0.94 | -27.05 | 33.09 | 28.76 | 219.05 | 0.6824 | 726.0 | 519.1 | |
| 0.00 | 2.09 | 0.00 | 1.41 | -27.20 | 32.56 | 28.23 | 218.40 | 0.6795 | 687.0 | 542.0 | |
| 0.00 | 1.05 | 0.00 | 0.69 | -27.91 | 30.14 | 25.80 | 215.33 | 0.6675 | 714.0 | 601.7 | |
| 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. | |