minute of arc

美 [ˈmɪnɪt əv ɑːrk]英 [ˈmɪnɪt ɒv ɑːk]
  • 弧分
minute of arcminute of arc

noun

1
a unit of angular distance equal to a 60th of a degree
Synonym: minute arcminute

数据来源:WordNet