SDO HMI 2011-08-17 12:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.47 | 0.00 | 4.69 | -22.71 | 141.85 | 24.10 | 218.19 | 0.6161 | 708.3 | 577.9 | |
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back to the solar disc SDO HMI 2011-08-17 12:59:09 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 | 1.26 | 0.00 | 0.76 | -16.34 | 144.25 | 26.50 | 228.41 | 0.5747 | 689.0 | 558.7 | |
| 0.00 | 1.17 | 0.00 | 0.75 | -24.53 | 142.81 | 25.06 | 217.13 | 0.6406 | 659.0 | 542.2 | |
| 0.00 | 0.72 | 0.00 | 0.46 | -24.41 | 142.56 | 24.82 | 216.99 | 0.6374 | 735.0 | 588.8 | |
| 0.00 | 1.62 | 0.00 | 1.04 | -24.63 | 142.57 | 24.82 | 216.78 | 0.6396 | 707.0 | 551.9 | |
| 0.00 | 1.71 | 0.00 | 1.05 | -20.75 | 141.58 | 23.83 | 219.89 | 0.5914 | 711.0 | 611.2 | |
| 0.00 | 0.99 | 0.00 | 0.63 | -27.11 | 136.54 | 18.79 | 207.48 | 0.6236 | 749.0 | 623.5 | |
| 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. | |