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equinoctial point

/ˌiːkwɪˈnɒkʃəl pɔɪnt/

Tradução: Um dos dois pontos da esfera celeste onde o equador celeste cruza a eclíptica, correspondendo às posições do Sol nos equinócios de primavera e outono.

1 verbete

phrase

/ˌiːkwɪˈnɒkʃəl pɔɪnt/C2formalscientific
  • ptUm dos dois pontos da esfera celeste onde o equador celeste cruza a eclíptica, correspondendo às posições do Sol nos equinócios de primavera e outono.

Either of the two points in the sky where the celestial equator intersects the ecliptic, marking the positions of the Sun at the vernal and autumnal equinoxes.

  1. Celestial intersectionC2formal

    Either of the two points in the sky where the celestial equator intersects the ecliptic, marking the positions of the Sun during the vernal and autumnal equinoxes.

    ptPonto equinocial

    • The Sun passes through the equinoctial point around March 20th each year.
    • Astronomers use the equinoctial point as a reference for celestial coordinates.
    • The equinoctial point shifts slowly over time due to precession.