SDO HMI 2011-10-28 21:59:00 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.30 | 7.63 | 0.69 | 4.24 | 17.16 | 219.10 | -23.25 | 58.49 | 0.4384 | -570.1 | -510.5 | |
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previous
observation for the same group /
back to the solar disc SDO HMI 2011-10-28 21:59:00 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 | 1.39 | 0.00 | 0.73 | 14.86 | 226.28 | -16.07 | 56.24 | 0.3233 | -946.0 | -713.0 | |
| 1.30 | 1.82 | 0.69 | 0.96 | 16.83 | 225.96 | -16.40 | 51.80 | 0.3453 | 732.5 | 635.7 | |
| 0.00 | 1.04 | 0.00 | 0.58 | 17.87 | 218.39 | -23.97 | 58.82 | 0.4538 | -610.0 | -515.5 | |
| 0.00 | 1.56 | 0.00 | 0.89 | 18.12 | 215.78 | -26.57 | 60.58 | 0.4901 | -745.0 | -616.9 | |
| 0.00 | 0.87 | 0.00 | 0.50 | 17.76 | 213.51 | -28.85 | 62.91 | 0.5182 | -776.0 | -581.9 | |
| 0.00 | 0.95 | 0.00 | 0.58 | 17.93 | 209.35 | -33.01 | 65.08 | 0.5737 | -672.0 | -570.8 | |
| 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. | |