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Solar System

solar system unit

star a large, hot ball of glowing gases
tilt move or cause to move in a sloping position
orbit the path of an object in space as it travels around another object.
moon the natural satellite of earth
telescope an optical instrument designed to make distant objects appear nearer
universe all existing matter and space considered as a whole
planet a celestial moving in an elliptical orbit around a star
revolve move in a circle on a central axis
rotate move or cause to move in a circle around an axis or center
solar energy radiant energy emitted by the sun
constellation a group of stars forming a recognizable pattern
atmosphere the envelope of gases surrounding the earth or another planet
comet a celestial object consisting of a nucleus of ice and dust
lunar eclipse an eclipse in which appears darkened as it passes into earths shadow
solar eclipse an eclipse in which the sun is obscured by the moon
elliptical its large and contains millions to trillions of stars
galaxy a system of millions or billions of stars together with gas and dust held together by gravitational attraction
solstice either of the two times in the year the summer and winter solstice when the sun reaches its highest or lowest point in the sky
asteroid a rocky mass up to hundred kilometers wide that revolves around the sun
satellite an artificial body placed in orbit around the earth or the moon or another planet in order to collect information or for communication