SDO HMI 2011-08-21 16:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 16.18 | 49.80 | 16.16 | 50.24 | 18.82 | 1.57 | -61.10 | 72.25 | 0.8721 | -571.7 | -99.6 | |
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back to the solar disc SDO HMI 2011-08-21 16:59:09 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 |
| 2.34 | 14.02 | 2.29 | 13.73 | 19.07 | 2.43 | -60.24 | 71.90 | 0.8652 | -752.3 | -539.9 | |
| 4.04 | -1.00 | 3.97 | -1.00 | 18.82 | 2.39 | -60.28 | 72.20 | 0.8654 | -652.8 | 999999 | |
| 9.80 | 32.09 | 9.90 | 32.67 | 18.97 | 1.37 | -61.30 | 72.09 | 0.8738 | -564.0 | 75.1 | |
| 0.00 | 0.99 | 0.00 | 1.02 | 17.15 | 0.64 | -62.03 | 74.19 | 0.8790 | -388.0 | -316.4 | |
| 0.00 | 1.62 | 0.00 | 1.69 | 17.21 | 0.26 | -62.41 | 74.14 | 0.8820 | -400.0 | -309.2 | |
| 0.00 | 1.08 | 0.00 | 1.13 | 17.31 | 0.06 | -62.61 | 74.02 | 0.8836 | -269.0 | -199.3 | |
| 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. | |