SDO HMI 2011-10-31 12:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.27 | 26.50 | 4.05 | 14.83 | 31.21 | 215.02 | 7.26 | 346.35 | 0.4674 | -288.1 | -461.8 | |
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back to the solar disc SDO HMI 2011-10-31 12:58:59 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 |
| 2.42 | 23.29 | 1.35 | 13.00 | 30.78 | 216.24 | 8.48 | 344.07 | 0.4637 | -931.2 | -655.6 | |
| 1.39 | -1.00 | 0.77 | -1.00 | 30.55 | 216.08 | 8.32 | 344.20 | 0.4597 | -1136.8 | 999999 | |
| 3.46 | -1.00 | 1.93 | -1.00 | 30.88 | 215.87 | 8.11 | 344.81 | 0.4637 | -946.9 | 999999 | |
| 0.00 | 1.30 | 0.00 | 0.74 | 33.62 | 208.94 | 1.18 | 357.99 | 0.4895 | 641.0 | 460.7 | |
| 0.00 | 0.61 | 0.00 | 0.35 | 35.27 | 207.98 | 0.22 | 359.65 | 0.5143 | 630.0 | 557.1 | |
| 0.00 | 1.30 | 0.00 | 0.74 | 34.41 | 206.64 | -1.12 | 1.85 | 0.5015 | 658.0 | 477.7 | |
| 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. | |