SDO HMI 2011-08-25 23:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.62 | 11.76 | 0.90 | 6.55 | -18.24 | 355.80 | -10.14 | 158.58 | 0.4595 | 412.7 | 393.6 | |
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back to the solar disc SDO HMI 2011-08-25 23:59:08 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 | 0.90 | 0.00 | 0.50 | -18.53 | 357.17 | -8.77 | 161.44 | 0.4561 | 732.0 | 618.6 | |
| 0.00 | 2.42 | 0.00 | 1.34 | -18.26 | 357.15 | -8.79 | 161.20 | 0.4522 | 945.0 | 756.7 | |
| 0.00 | 0.99 | 0.00 | 0.55 | -18.13 | 357.03 | -8.91 | 160.86 | 0.4509 | 798.0 | 599.4 | |
| 0.00 | 0.45 | 0.00 | 0.25 | -18.40 | 356.79 | -9.15 | 160.59 | 0.4561 | 692.0 | 482.4 | |
| 0.00 | 1.17 | 0.00 | 0.64 | -17.29 | 355.92 | -10.03 | 157.95 | 0.4447 | 756.0 | 504.5 | |
| 1.62 | 2.78 | 0.90 | 1.56 | -18.64 | 355.25 | -10.69 | 157.84 | 0.4680 | -885.4 | -688.4 | |
| 0.00 | 0.99 | 0.00 | 0.55 | -18.18 | 354.92 | -11.02 | 156.82 | 0.4634 | -697.0 | -591.5 | |
| 0.00 | 2.06 | 0.00 | 1.16 | -18.14 | 353.95 | -11.99 | 154.98 | 0.4689 | 831.0 | 776.8 | |
| 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. | |