SDO HMI 2011-08-30 22:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 31.15 | 168.77 | 15.73 | 85.22 | 18.27 | 299.52 | -0.92 | 4.46 | 0.1941 | -1173.7 | -456.8 | |
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back to the solar disc SDO HMI 2011-08-30 22:59:08 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 |
| 0.00 | 1.61 | 0.00 | 0.80 | 14.01 | 301.99 | 1.55 | 347.56 | 0.1226 | -1046.0 | -834.3 | |
| 30.08 | 159.28 | 15.19 | 80.44 | 18.31 | 299.64 | -0.80 | 3.95 | 0.1944 | -1268.3 | -436.3 | |
| 1.07 | -2.00 | 0.54 | -2.00 | 18.30 | 299.22 | -1.22 | 5.97 | 0.1950 | -809.9 | 999999 | |
| 0.00 | 1.79 | 0.00 | 0.90 | 17.49 | 297.20 | -3.24 | 16.75 | 0.1881 | -955.0 | -660.2 | |
| 0.00 | 5.46 | 0.00 | 2.76 | 18.51 | 296.89 | -3.55 | 16.62 | 0.2063 | -712.0 | -741.8 | |
| 0.00 | 0.63 | 0.00 | 0.32 | 18.35 | 296.61 | -3.83 | 18.11 | 0.2052 | -741.0 | -627.1 | |
| 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. | |