Library / English Dictionary

    RIGHT ASCENSION

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    (astronomy) the equatorial coordinate specifying the angle, measured eastward along the celestial equator, from the vernal equinox to the intersection of the hour circle that passes through an object in the sky; usually expressed in hours and minutes and seconds; used with declination to specify positions on the celestial sphereplay

    Example:

    one hour of right ascension equals fifteen degrees

    Synonyms:

    celestial longitude; RA; right ascension

    Classified under:

    Nouns denoting spatial position

    Hypernyms ("right ascension" is a kind of...):

    angular distance (the angular separation between two objects as perceived by an observer)

    Domain category:

    astronomy; uranology (the branch of physics that studies celestial bodies and the universe as a whole)

    Credits


    © 1991-2023 The Titi Tudorancea Bulletin | Titi Tudorancea® is a Registered Trademark | Terms of use and privacy policy
    Contact