SDO HMI 2011-02-27 20:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.15 | 22.05 | 4.80 | 14.94 | 17.57 | 177.67 | -35.59 | 54.44 | 0.6842 | -440.0 | -322.2 | |
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back to the solar disc SDO HMI 2011-02-27 20:58:58 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 | 1.12 | 0.00 | 0.73 | 15.70 | 179.98 | -33.29 | 55.04 | 0.6470 | 624.0 | 417.5 | |
| 0.00 | 1.38 | 0.00 | 0.91 | 16.57 | 178.76 | -34.50 | 54.88 | 0.6661 | 577.0 | 436.2 | |
| 7.15 | 14.30 | 4.80 | 9.61 | 17.42 | 178.16 | -35.10 | 54.26 | 0.6783 | -825.1 | -506.2 | |
| 0.00 | 1.98 | 0.00 | 1.39 | 19.84 | 176.52 | -36.74 | 52.54 | 0.7113 | -450.0 | -416.6 | |
| 0.00 | 1.12 | 0.00 | 0.78 | 18.11 | 175.99 | -37.28 | 54.99 | 0.7051 | -526.0 | -483.0 | |
| 0.00 | 0.86 | 0.00 | 0.61 | 17.55 | 174.90 | -38.36 | 56.42 | 0.7126 | -484.0 | -392.9 | |
| 0.00 | 1.29 | 0.00 | 0.91 | 17.67 | 174.55 | -38.71 | 56.50 | 0.7169 | -533.0 | -372.3 | |
| 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. | |