SDO HMI 2011-10-27 23:59:00 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.56 | 13.10 | 8.43 | 31.06 | -21.94 | 329.36 | 74.92 | 246.34 | 0.9788 | -366.6 | -295.6 | |
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back to the solar disc SDO HMI 2011-10-27 23:59:00 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 |
| 3.56 | 10.15 | 8.43 | 24.00 | -21.87 | 329.33 | 74.89 | 246.40 | 0.9787 | -393.4 | -304.3 | |
| 0.00 | 1.30 | 0.00 | 3.21 | -22.20 | 329.86 | 75.42 | 246.15 | 0.9806 | -6.0 | -34.6 | |
| 0.00 | 1.65 | 0.00 | 3.85 | -22.14 | 329.13 | 74.69 | 246.09 | 0.9782 | -501.0 | -477.8 | |
| 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. | |