SDO HMI 2011-02-08 10:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.74 | 8.64 | 2.11 | 6.81 | 20.39 | 64.91 | -44.07 | 57.04 | 0.7787 | -424.1 | -383.2 | |
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back to the solar disc SDO HMI 2011-02-08 10:58:56 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 |
| 2.74 | 5.73 | 2.11 | 4.44 | 20.18 | 65.80 | -43.19 | 56.82 | 0.7698 | -701.4 | -562.1 | |
| 0.00 | 2.05 | 0.00 | 1.61 | 20.69 | 65.18 | -43.80 | 56.58 | 0.7781 | -649.0 | -462.2 | |
| 0.00 | 0.86 | 0.00 | 0.76 | 20.95 | 59.17 | -49.81 | 59.32 | 0.8317 | 386.0 | 332.4 | |
| 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. | |