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The astronomical unit gets fixed

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Earth–Sun distance changes from slippery equation to single number.

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Change history

  • 14 September 2012

    The article originally stated that under the old definition the au would shift by a thousand kilometres if calculated from the orbit of Jupiter. It would in fact change by a thousand metres. The text has been changed to reflect this.

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The new definition of the Astronomical Unit

The International Astronomical Union

The previous definition of the Astronomical Unit

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Brumfiel, G. The astronomical unit gets fixed. Nature (2012). https://doi.org/10.1038/nature.2012.11416

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  • DOI: https://doi.org/10.1038/nature.2012.11416

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