SDO HMI 2011-10-11 13:59:02 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.63 | 6.13 | 2.56 | 5.95 | 18.07 | 51.22 | -59.77 | 72.61 | 0.8629 | -410.8 | -360.4 | |
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back to the solar disc SDO HMI 2011-10-11 13:59:02 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 |
| 1.58 | 1.84 | 1.53 | 1.78 | 18.13 | 51.30 | -59.69 | 72.53 | 0.8622 | -473.5 | -309.7 | |
| 1.05 | 2.01 | 1.03 | 1.97 | 18.63 | 50.95 | -60.04 | 71.98 | 0.8654 | -282.7 | -234.7 | |
| 0.00 | 2.28 | 0.00 | 2.20 | 17.52 | 51.39 | -59.60 | 73.24 | 0.8611 | -447.0 | -420.0 | |
| 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. | |