Vocab Bloom Hub

celestial equator

/səˈlɛstiəl ɪˈkweɪtər/

1 entry

phrase

/səˈlɛstiəl ɪˈkweɪtər/C1formalscientific
  • ruВоображаемый большой круг на небесной сфере, лежащий в той же плоскости, что и экватор Земли, разделяющий небо на северное и южное полушария.

An imaginary great circle on the celestial sphere that lies in the same plane as Earth's equator, dividing the sky into northern and southern hemispheres.

  1. Astronomical reference lineC1formal

    An imaginary great circle on the celestial sphere that lies directly above the Earth's equator, dividing the sky into northern and southern hemispheres.

    ruНебесный экватор

    • The celestial equator is used as a reference point for mapping stars and planets.
    • Astronomers measure declination in degrees north or south of the celestial equator.
    • The Sun crosses the celestial equator during the equinoxes.