SDO HMI 2011-08-17 17:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.84 | 0.00 | 4.44 | -24.73 | 140.09 | 25.11 | 216.95 | 0.6439 | 623.2 | 513.7 | |
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back to the solar disc SDO HMI 2011-08-17 17:59:09 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 | 1.35 | 0.00 | 0.85 | -20.64 | 141.52 | 26.54 | 223.00 | 0.6153 | 749.0 | 627.3 | |
| 0.00 | 0.99 | 0.00 | 0.66 | -25.91 | 142.08 | 27.10 | 217.82 | 0.6705 | 452.0 | 396.2 | |
| 0.00 | 1.71 | 0.00 | 1.14 | -25.73 | 142.00 | 27.01 | 217.92 | 0.6681 | 577.0 | 461.3 | |
| 0.00 | 0.63 | 0.00 | 0.42 | -25.63 | 141.48 | 26.50 | 217.50 | 0.6631 | 565.0 | 528.3 | |
| 0.00 | 0.63 | 0.00 | 0.41 | -27.18 | 136.62 | 21.64 | 210.79 | 0.6432 | 605.0 | 517.7 | |
| 0.00 | 1.53 | 0.00 | 0.96 | -24.92 | 136.08 | 21.10 | 212.23 | 0.6143 | 791.0 | 548.2 | |
| 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. | |