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Arcsecond vs Subarcsecond - What's the difference?

arcsecond | subarcsecond |

As a noun arcsecond

is a unit of angle; 1/60th of an arcminute, or 1/3600th of a degree.

As an adjective subarcsecond is

describing an angle having a value less than one 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

    subarcsecond

    English

    Adjective

    (-)
  • Describing an angle having a value less than one arcsecond