SDO HMI 2011-12-07 08:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.95 | 0.00 | 4.68 | -18.29 | 79.16 | -3.06 | 170.94 | 0.3213 | -31.8 | 198.3 | |
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back to the solar disc SDO HMI 2011-12-07 08:58:56 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 | 1.28 | 0.00 | 0.66 | -17.19 | 79.82 | -2.40 | 172.36 | 0.3016 | 896.0 | 665.9 | |
| 0.00 | 4.26 | 0.00 | 2.23 | -18.22 | 79.75 | -2.47 | 172.58 | 0.3186 | 812.0 | 793.2 | |
| 0.00 | 1.28 | 0.00 | 0.67 | -18.97 | 78.61 | -3.61 | 169.68 | 0.3338 | -918.0 | -760.5 | |
| 0.00 | 2.13 | 0.00 | 1.12 | -18.65 | 77.93 | -4.29 | 167.58 | 0.3310 | -917.0 | -688.2 | |
| 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. | |