Siriometer

The siriometer is a rarely used astronomical measure equal to one million astronomical units, i.e., one million times the average distance between the Sun and Earth. This distance is equal to about 149,597,870,000,000,000 meters (149.6 Pm) or about 15.813 light-years, which is roughly twice the distance from Earth to the star Sirius.

单词	siriometer
释义	siriometer /ˌsairi'ɔmitə/ 英汉-汉英词典 n. 兆(天文单位) 词组 \| 习惯用语您要查找的是不是： audiometer n. 听度计 spectrometer n. 分光计, 分光仪 micrometer n. 千分尺；测微计；微米 radiometer n. 辐射计；放射计 densitometer n. 光密度计；比重计；密度计英语百科 Siriometer The siriometer is a rarely used astronomical measure equal to one million astronomical units, i.e., one million times the average distance between the Sun and Earth. This distance is equal to about 149,597,870,000,000,000 meters (149.6 Pm) or about 15.813 light-years, which is roughly twice the distance from Earth to the star Sirius.
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siriometer /ˌsairi'ɔmitə/

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Siriometer