Right Ascension Definition

noun

The angular distance of the hour circle of a celestial body from the vernal equinox, measured eastward along the celestial equator and expressed in degrees (from 0 to 360) or, more commonly, in hours (from 0 to 24), minutes, and seconds: it is used with declination to find an exact position in the sky: abbrev. RA.

Webster's New World
Synonyms:

Other Word Forms of Right Ascension

Noun

Singular:
right ascension
Plural:
right ascensions

Find Similar Words

Find similar words to right ascension using the buttons below.

Words Starting With

Words Ending With

Unscrambles

right ascension