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The International System of Units (SI) is based on seven fundamental units from which other units may be derived, but many astronomers are reluctant to drop their old and familiar systems. This handbook demonstrates the ease with which transformations from old units to SI units may be made. Using worked examples, the author argues that astronomers would benefit greatly if the reporting of astronomical research and the sharing of data were standardized to SI units. Each chapter reviews a different SI base unit, clarifying the connection between these units and those currently favoured by astronomers. This is an essential reference for all researchers in astronomy and astrophysics, and will also appeal to advanced students. 606 $aCommunication in astronomy 606 $aMetric system 615 0$aCommunication in astronomy. 615 0$aMetric system. 676 $a522/.87 686 $aSCI004000$2bisacsh 700 $aDodd$b Richard$01470866 801 0$bUkCbUP 801 1$bUkCbUP 906 $aBOOK 912 $a9910789706103321 996 $aUsing SI units in astronomy$93682937 997 $aUNINA