SDO HMI 2011-10-19 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 |
| 0.00 | 4.02 | 0.00 | 3.04 | 15.63 | 322.94 | -49.09 | 74.20 | 0.7591 | 468.0 | 408.7 | |
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back to the solar disc SDO HMI 2011-10-19 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 |
| 0.00 | 0.70 | 0.00 | 0.51 | 18.08 | 325.28 | -46.76 | 70.50 | 0.7370 | 581.0 | 482.5 | |
| 0.00 | 1.66 | 0.00 | 1.24 | 13.67 | 323.18 | -48.85 | 76.72 | 0.7541 | 513.0 | 414.9 | |
| 0.00 | 0.96 | 0.00 | 0.72 | 13.16 | 323.23 | -48.81 | 77.39 | 0.7532 | 201.0 | 246.0 | |
| 0.00 | 0.70 | 0.00 | 0.57 | 20.82 | 319.98 | -52.05 | 68.02 | 0.7972 | 577.0 | 534.8 | |
| 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. | |