SDO HMI 2011-10-17 01:59:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.24 | 14.74 | 3.37 | 9.55 | -15.22 | 3.82 | -34.60 | 121.91 | 0.6476 | 287.8 | 237.7 | |
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back to the solar disc SDO HMI 2011-10-17 01:59:01 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 |
| 3.06 | 5.67 | 1.95 | 3.62 | -15.07 | 5.00 | -33.42 | 122.55 | 0.6333 | 754.8 | 632.3 | |
| 0.00 | 0.96 | 0.00 | 0.62 | -15.68 | 3.80 | -34.62 | 122.50 | 0.6509 | 624.0 | 519.4 | |
| 1.92 | 4.10 | 1.25 | 2.66 | -15.30 | 3.83 | -34.59 | 122.00 | 0.6480 | 716.0 | 609.9 | |
| 0.00 | 0.96 | 0.00 | 0.62 | -15.08 | 3.76 | -34.66 | 121.65 | 0.6474 | 651.0 | 538.9 | |
| 0.26 | 1.13 | 0.17 | 0.75 | -15.65 | 2.20 | -36.22 | 121.33 | 0.6684 | -656.0 | -506.5 | |
| 0.00 | 1.92 | 0.00 | 1.28 | -15.09 | 1.46 | -36.96 | 120.10 | 0.6733 | -753.0 | -635.1 | |
| 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. | |