asteroide Apolo

A small rocky or metallic body orbitting the Sun. About 20,000 have been observed, ranging in size from several hundred kilometers across down to dust particles.

asteroide

Astronomie; Science des planètes

A small, mostly rocky body orbiting the Sun. Asteroids range in size from 1000 kilometers in diameter to tiny objects you could hold in your hand. Most asteroids orbit the Sun ...

Sistema de Procesado de imágenes astronómicas

Astronomie; l'astronomie générale

Developed by the National Radio Astronomy Observatory.

órbita

Astronomie; l'astronomie générale

The path of one object about another (used here for an object orbiting the sun).

meteoros

Astronomie; l'astronomie générale

Small rocky and/or icy particles that are swept up by the earth in its orbit about the sun. Also called "shooting stars", they travel across the sky in a very short time, from ...

equinoccio

Astronomie; l'astronomie générale

Either of the two points (vernal, autumnal) on the celestial sphere where the ecliptic (which is the apparent path of the sun on the sky) intersects the celestial equator. Due to ...

cometa

Astronomie; l'astronomie générale

A celestial body orbiting the sun (though some may be ejected from the solar system by planetary perturbations) that displays (at least during a portion of its orbit) some ...