SDO HMI 2011-02-13 19:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.46 | 12.34 | 0.90 | 7.33 | -20.02 | 69.75 | 31.56 | 243.12 | 0.5517 | -108.0 | 5.8 | |
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back to the solar disc SDO HMI 2011-02-13 19:58:57 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 |
| 1.46 | 3.25 | 0.90 | 2.00 | -19.97 | 73.12 | 34.93 | 245.22 | 0.5951 | 637.6 | 515.6 | |
| 0.00 | 1.03 | 0.00 | 0.63 | -20.19 | 73.03 | 34.84 | 244.81 | 0.5947 | 834.0 | 624.8 | |
| 0.00 | 2.40 | 0.00 | 1.47 | -20.09 | 72.73 | 34.54 | 244.85 | 0.5905 | 986.0 | 824.1 | |
| 0.00 | 2.31 | 0.00 | 1.35 | -19.25 | 68.37 | 30.18 | 244.00 | 0.5301 | -850.0 | -693.7 | |
| 0.00 | 1.46 | 0.00 | 0.83 | -20.45 | 64.81 | 26.62 | 239.38 | 0.4898 | -781.0 | -696.3 | |
| 0.00 | 0.86 | 0.00 | 0.48 | -20.12 | 63.41 | 25.22 | 238.86 | 0.4694 | -662.0 | -583.3 | |
| 0.00 | 1.03 | 0.00 | 0.57 | -20.93 | 62.40 | 24.21 | 236.39 | 0.4619 | -846.0 | -607.8 | |
| 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. | |