SDO HMI 2010-12-31 04:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.54 | 9.42 | 1.59 | 5.97 | -27.02 | 234.41 | -31.37 | 131.87 | 0.6249 | 508.5 | 332.8 | |
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back to the solar disc SDO HMI 2010-12-31 04:58:55 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 |
| 2.29 | 3.48 | 1.43 | 2.18 | -27.58 | 236.14 | -29.64 | 134.01 | 0.6118 | 871.6 | 647.1 | |
| 0.00 | 1.10 | 0.00 | 0.69 | -25.70 | 234.67 | -31.12 | 130.25 | 0.6124 | 840.0 | 558.5 | |
| 0.00 | 0.51 | 0.00 | 0.32 | -25.86 | 234.62 | -31.17 | 130.43 | 0.6141 | 682.0 | 548.7 | |
| 0.00 | 0.68 | 0.00 | 0.42 | -25.51 | 234.57 | -31.22 | 129.90 | 0.6120 | 631.0 | 537.5 | |
| 0.25 | 2.46 | 0.16 | 1.58 | -26.89 | 233.10 | -32.69 | 130.66 | 0.6373 | 585.7 | 472.3 | |
| 0.00 | 1.19 | 0.00 | 0.78 | -28.16 | 231.86 | -33.92 | 131.44 | 0.6587 | -728.0 | -617.6 | |
| 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. | |