SDO HMI 2011-12-19 01:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 17.69 | 123.76 | 21.05 | 147.72 | -18.78 | 352.35 | 64.42 | 249.92 | 0.9110 | 684.9 | 225.9 | |
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back to the solar disc SDO HMI 2011-12-19 01:58:55 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 | 4.25 | 0.00 | 5.32 | -19.19 | 353.65 | 65.72 | 249.65 | 0.9200 | 281.0 | 66.3 | |
| 17.69 | 116.28 | 21.05 | 138.69 | -18.72 | 352.33 | 64.40 | 249.99 | 0.9108 | 721.7 | 233.0 | |
| 0.00 | 3.23 | 0.00 | 3.71 | -20.59 | 351.05 | 63.12 | 247.76 | 0.9039 | 316.0 | 230.1 | |
| 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. | |