SDO HMI 2011-12-09 15:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.17 | 95.50 | 19.53 | 79.87 | 18.41 | 103.30 | 51.27 | 293.21 | 0.8076 | -393.5 | -198.9 | |
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back to the solar disc SDO HMI 2011-12-09 15:58:55 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 |
| 3.24 | 5.54 | 2.81 | 4.80 | 17.14 | 105.36 | 53.33 | 291.14 | 0.8240 | 578.7 | 592.8 | |
| 2.81 | 4.26 | 2.45 | 3.72 | 17.51 | 105.41 | 53.38 | 291.56 | 0.8253 | 610.3 | 326.1 | |
| 0.00 | 1.11 | 0.00 | 0.88 | 15.10 | 101.87 | 49.84 | 289.56 | 0.7854 | 420.0 | 353.2 | |
| 17.12 | 82.63 | 14.27 | 68.95 | 18.63 | 103.13 | 51.10 | 293.52 | 0.8066 | -873.5 | -257.0 | |
| 0.00 | 0.77 | 0.00 | 0.61 | 17.78 | 101.42 | 49.40 | 293.01 | 0.7878 | -583.0 | -496.6 | |
| 0.00 | 1.19 | 0.00 | 0.91 | 15.77 | 99.47 | 47.45 | 291.10 | 0.7622 | 641.0 | 495.6 | |
| 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. | |