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annual parallax

/ˈænjuəl ˈpærəlæks/

1 entry

phrase

/ˈænjuəl ˈpærəlæks/C1formalscientific
  • ruВидимое смещение положения близкой звезды или небесного объекта при наблюдении с Земли, вызванное орбитальным движением Земли вокруг Солнца в течение года. Используется для измерения расстояний до звёзд.

The apparent shift in the position of a nearby star or celestial object as observed from Earth, caused by the Earth's orbit around the Sun over the course of a year. It is used to measure distances to stars.

  1. Astronomical measurementC2formal

    The apparent shift in the position of a nearby star against the background of distant stars, caused by the Earth's orbit around the Sun.

    ruГодичный параллакс

    • Astronomers use annual parallax to calculate the distance to nearby stars.
    • The annual parallax of Proxima Centauri is about 0.77 arcseconds.
    • Measuring annual parallax was a major breakthrough in stellar astronomy.