SDO HMI 2010-12-31 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 |
| 1.19 | 19.86 | 0.69 | 11.57 | -27.52 | 235.12 | -20.78 | 143.14 | 0.5261 | -46.4 | 303.0 | |
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back to the solar disc SDO HMI 2010-12-31 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 | 8.24 | 0.00 | 4.76 | -27.85 | 236.65 | -19.25 | 145.44 | 0.5161 | 999.0 | 804.8 | |
| 1.19 | 2.55 | 0.69 | 1.47 | -27.62 | 236.48 | -19.42 | 144.93 | 0.5149 | 811.7 | 703.7 | |
| 0.00 | 2.12 | 0.00 | 1.24 | -27.40 | 234.86 | -21.05 | 142.57 | 0.5268 | -879.0 | -634.0 | |
| 0.00 | 1.95 | 0.00 | 1.12 | -25.88 | 234.83 | -21.07 | 140.50 | 0.5106 | 274.0 | 533.7 | |
| 0.00 | 1.10 | 0.00 | 0.64 | -25.78 | 234.53 | -21.37 | 139.99 | 0.5124 | 688.0 | 562.2 | |
| 0.00 | 1.95 | 0.00 | 1.17 | -28.36 | 232.23 | -23.67 | 140.76 | 0.5608 | -662.0 | -447.6 | |
| 0.00 | 0.76 | 0.00 | 0.46 | -28.27 | 231.04 | -24.87 | 139.37 | 0.5709 | -527.0 | -461.7 | |
| 0.00 | 1.19 | 0.00 | 0.71 | -27.65 | 230.90 | -25.01 | 138.41 | 0.5663 | -810.0 | -735.2 | |
| 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. | |