celestial longitude


Also found in: Dictionary, Encyclopedia, Wikipedia.
  • noun

Synonyms for celestial longitude

(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

References in periodicals archive ?
This ornamental metal armillary in a silver nickel plated finish has a spherical framework of rings, centred on Earth, and represent lines of celestial longitude and latitude.