ASTRONOMY UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS COMPLETE STUDY GUIDE FULL SOLUTION

ASTRONOMY UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE FULL SOLUTION

●● astronomy
Answer: The study of the moon, stars, and other objects in space


●● satellite
Answer: An object that revolves around another object in space


●● comet
Answer: small body of ice and dust that orbits the sun - as it gets closer
to the sun it gives off a dust trail


●● moon
Answer: A natural satellite that revolves around a planet.


●● Geocentric
Answer: A model of the universe in which Earth is at the center of the
revolving planets and stars.


●● asteroid

,Answer: large irregular-shaped bodies of rock that revolve around the
sun, typically several hundred kilometers wide


●● maria
Answer: A large, dark area of basalt on the moon.


●● Heliocentric
Answer: A model of the solar system in which Earth and the other
planets revolve around the sun


●● asteroid belt
Answer: a region between Mars and Jupiter where most asteroids orbit


●● craters
Answer: A large round pit caused by the impact of a meteoroid.


●● orbit
Answer: The path of an object as it revolves around another object in
space


●● retrograde motion

, Answer: The apparent motion of the planets when they appear to move
backwards (westward) with respect to the stars from the direction that
they move ordinarily.


●● dwarf planet
Answer: an object that orbits the sun and is spherical but has not cleared
its orbit of other materials


●● planet
Answer: A large spherical body in space that orbits a star and does not
produce light of its own


●● Ellipse
Answer: A elongated circle, or oval shape, the shape of the planets orbit.


●● Astronomical Unit (AU)
Answer: the average distance between Earth and the sun, about 150
million km


●● mercury
Answer: closest planet to the sun


●● Copernicus