SDO HMI 2011-08-30 11:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 24.55 | 166.73 | 12.48 | 84.77 | 18.22 | 299.63 | -6.89 | 30.49 | 0.2252 | -950.9 | -431.2 | |
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back to the solar disc SDO HMI 2011-08-30 11:59:08 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 |
| 23.30 | 161.10 | 11.84 | 81.88 | 18.20 | 299.77 | -6.75 | 30.11 | 0.2236 | -1280.2 | -454.9 | |
| 0.00 | 1.25 | 0.00 | 0.64 | 20.74 | 299.53 | -6.99 | 25.75 | 0.2631 | -836.0 | -591.4 | |
| 1.25 | -1.00 | 0.64 | -1.00 | 18.26 | 299.38 | -7.14 | 31.36 | 0.2278 | -913.3 | 999999 | |
| 0.00 | 1.16 | 0.00 | 0.59 | 17.34 | 297.75 | -8.77 | 39.21 | 0.2311 | -767.0 | -615.6 | |
| 0.00 | 1.97 | 0.00 | 1.01 | 18.30 | 295.11 | -11.40 | 43.80 | 0.2724 | 810.0 | 692.1 | |
| 0.00 | 1.25 | 0.00 | 0.65 | 18.36 | 293.90 | -12.61 | 46.41 | 0.2875 | 864.0 | 676.0 | |
| 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. | |