SDO HMI 2011-12-07 12:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.22 | 0.00 | 3.82 | -16.29 | 47.08 | -32.95 | 118.38 | 0.5957 | -15.8 | 261.1 | |
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back to the solar disc SDO HMI 2011-12-07 12:58:56 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 |
| 0.00 | 0.77 | 0.00 | 0.46 | -15.32 | 48.64 | -31.39 | 117.88 | 0.5705 | 686.0 | 594.8 | |
| 0.00 | 1.02 | 0.00 | 0.63 | -17.73 | 47.06 | -32.97 | 120.55 | 0.6042 | -714.0 | -626.1 | |
| 0.00 | 3.58 | 0.00 | 2.20 | -16.34 | 47.26 | -32.77 | 118.56 | 0.5936 | 624.0 | 649.8 | |
| 0.00 | 0.85 | 0.00 | 0.53 | -15.24 | 44.99 | -35.04 | 115.50 | 0.6161 | -659.0 | -572.4 | |
| 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. | |