celestial sphere

• Esfera imaginária de raio arbitrariamente grande, concêntrica ao observador, sobre a qual todos os objetos celestes, como estrelas, planetas e o Sol, parecem estar projetados. É um conceito fundamental da astronomia para mapear e localizar objetos no céu.

An imaginary sphere of arbitrarily large radius, concentric with the observer, upon which all celestial objects such as stars, planets, and the Sun appear to be projected. It is a fundamental concept in astronomy for mapping and locating objects in the sky.

1. Imaginary sphere in astronomyC1formal

   An imaginary sphere of arbitrarily large radius, concentric with the observer, on which all celestial objects are considered to lie.

   esfera celeste

   • Astronomers use the celestial sphere to map the positions of stars and planets.
   • The celestial sphere is divided into constellations.
   • The concept of the celestial sphere helps simplify the observation of the night sky.