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Milliarcsecond vs Arcsecond - What's the difference?

milliarcsecond | arcsecond |

Milliarcsecond is a derived term of arcsecond.


As nouns the difference between milliarcsecond and arcsecond

is that milliarcsecond is (metrology) a unit of angle equal to one thousandth of an arcsecond (used especially in astronomy) while arcsecond is a unit of angle; 1/60th of an arcminute, or 1/3600th of a degree.

milliarcsecond

English

Noun

  • (metrology) A unit of angle equal to one thousandth of an arcsecond (used especially in astronomy)
    • Derived terms
    * (abbreviation) mas
    Related terms
    * milli- * arcsecond

    arcsecond

    English

    Noun

    (en noun)
  • A unit of angle; 1/60th of an arcminute, or 1/3600th of a degree.

    • Synonyms

    * second of arc * as (symbol) * arcsec (abbreviation)

    Derived terms

    * milliarcsecond

    Related terms

    * arcminute