SDO HMI 2011-12-18 16:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 25.76 | 148.04 | 26.20 | 150.33 | -18.65 | 352.43 | 59.54 | 249.29 | 0.8751 | 716.9 | 259.2 | |
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back to the solar disc SDO HMI 2011-12-18 16:58:55 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 | 0.85 | 0.00 | 0.89 | -16.71 | 353.77 | 60.88 | 251.69 | 0.8833 | -310.0 | -240.8 | |
| 1.36 | 145.91 | 1.43 | 148.16 | -19.03 | 353.59 | 60.69 | 249.06 | 0.8846 | 193.6 | 261.6 | |
| 0.68 | -2.00 | 0.71 | -2.00 | -18.97 | 353.42 | 60.53 | 249.10 | 0.8833 | -176.1 | 999999 | |
| 0.00 | 0.34 | 0.00 | 0.36 | -19.26 | 353.40 | 60.51 | 248.78 | 0.8835 | 258.0 | 270.8 | |
| 23.72 | -2.00 | 24.06 | -2.00 | -18.62 | 352.33 | 59.44 | 249.31 | 0.8743 | 844.4 | 999999 | |
| 0.00 | 0.94 | 0.00 | 0.92 | -20.49 | 351.12 | 58.23 | 246.96 | 0.8674 | 518.0 | 415.2 | |
| 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. | |