SDO HMI 2011-12-11 22:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.60 | 0.00 | 24.97 | 20.54 | 302.43 | -79.38 | 69.05 | 0.9860 | 59.0 | -102.0 | |
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back to the solar disc SDO HMI 2011-12-11 22:58:55 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 |
| 0.00 | 1.11 | 0.00 | 3.86 | 21.60 | 300.84 | -80.96 | 68.09 | 0.9904 | 111.0 | 127.6 | |
| 0.00 | 5.62 | 0.00 | 14.65 | 20.05 | 303.59 | -78.22 | 69.47 | 0.9828 | -333.0 | -265.0 | |
| 0.00 | 0.85 | 0.00 | 2.97 | 21.44 | 300.61 | -81.19 | 68.27 | 0.9908 | 259.0 | 144.3 | |
| 0.00 | 1.02 | 0.00 | 3.49 | 20.68 | 300.86 | -80.95 | 69.02 | 0.9902 | 199.0 | 119.1 | |
| 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. | |