SDO HMI 2011-02-28 08:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.92 | 14.22 | 3.06 | 8.96 | 17.82 | 177.53 | -29.16 | 48.66 | 0.6198 | -767.5 | -582.0 | |
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back to the solar disc SDO HMI 2011-02-28 08:58:58 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 | 0.86 | 0.00 | 0.54 | 18.58 | 178.26 | -28.44 | 47.02 | 0.6192 | -819.0 | -662.6 | |
| 4.92 | 8.88 | 3.06 | 5.53 | 17.40 | 178.32 | -28.37 | 48.45 | 0.6082 | -928.2 | -662.7 | |
| 0.00 | 1.47 | 0.00 | 0.93 | 18.38 | 177.22 | -29.48 | 48.27 | 0.6280 | -711.0 | -587.1 | |
| 0.00 | 0.69 | 0.00 | 0.44 | 18.07 | 176.05 | -30.65 | 49.75 | 0.6372 | -606.0 | -496.5 | |
| 0.00 | 1.03 | 0.00 | 0.68 | 19.89 | 175.38 | -31.32 | 48.12 | 0.6588 | -577.0 | -425.0 | |
| 0.00 | 1.29 | 0.00 | 0.84 | 17.67 | 174.77 | -31.92 | 51.38 | 0.6471 | -633.0 | -458.3 | |
| 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. | |