Question

Define :

1)Orbit

(2) Celestial bodies

(3)Constellations

(4) Meteoroids

Answer 1

Answer:

1) Orbit : the curved path of a celestial object or spacecraft round a star, planet, or moon, especially a periodic elliptical revolution.

2) Celestial Bodies : celestial body is any natural body outside of the Earth's atmosphere.

3) Constellations : a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.

4) Meteoroids : a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.

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Answer 2

Answer:

☆an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet. Normally, orbit refers to a regularly repeating trajectory, although it may also refer to a non-repeating trajectory.

☆an astronomical object or celestial object is a naturally occurring physical entity, association, or structure that exists in the observable universe. In astronomy, the terms object and body are often used interchangeably.

☆A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived outline or pattern, typically representing an animal, mythological person or creature, or an inanimate object. The origins of the earliest constellations likely go back to prehistory.

☆A meteoroid is a small rocky or metallic body in outer space. Meteoroids are significantly smaller than asteroids, and range in size from small grains to one-meter-wide objects. Objects smaller than this are classified as micrometeoroids or space dust.