SDO HMI 2010-12-31 07:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.14 | 10.53 | 1.93 | 6.61 | -27.25 | 234.14 | -30.01 | 133.29 | 0.6127 | 121.9 | 84.5 | |
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back to the solar disc SDO HMI 2010-12-31 07:58:55 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 |
| 2.80 | 3.31 | 1.72 | 2.04 | -27.60 | 236.32 | -27.83 | 135.63 | 0.5939 | 856.3 | 783.8 | |
| 0.00 | 1.87 | 0.00 | 1.15 | -25.76 | 234.76 | -29.39 | 131.72 | 0.5945 | 637.0 | 522.1 | |
| 0.00 | 1.02 | 0.00 | 0.65 | -28.23 | 233.65 | -30.50 | 134.13 | 0.6254 | -665.0 | -486.9 | |
| 0.34 | 2.29 | 0.21 | 1.45 | -26.81 | 233.08 | -31.07 | 131.79 | 0.6201 | 722.0 | 558.9 | |
| 0.00 | 1.19 | 0.00 | 0.77 | -28.22 | 231.88 | -32.27 | 132.72 | 0.6426 | -775.0 | -653.5 | |
| 0.00 | 0.85 | 0.00 | 0.55 | -27.71 | 231.30 | -32.85 | 131.62 | 0.6447 | -699.0 | -591.5 | |
| 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. | |