The astronomical unit is defined to be 149 597 870 700
m ,
[8]
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Parsec - Wikipedia
{\displaystyle \mathrm {SD} \approx {\frac {\mathrm {ES} }{1''}}={\frac {1\,{\mbox{au}}}{{\frac {1}{60\times 60}}\times {\frac {\pi }{180}}}}={\frac {648\,000}{\pi }}\,{\mbox{au}}\approx 206\,264.81{\mbox{ au}}.}
Because <span>the astronomical unit is defined to be 7011149597870700000♠149597870700 m, [8] the following can be calculated:
Therefore, 1 parsec ≈ 7005206264806247096♠206264.806247096 astronomical units ≈ 7016308567758100000♠3.085677581×10 16 metres ≈ 7001191735115770000♠1 Summary
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