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Astronomy

TermDefinition
gravity force that pulls objects toward each other
constellation group of stars that form a recognizable pattern in the sky
solar system system of objects in space that includes at least one star, planets, their moons, asteroids, comets, and other space debris
orbit path an object follows in space around another object
galaxy big collection of dust, gas, stars, and their solar systems
universe everything in space
axis imaginary line that goes through the center of an object
star a space object that gives off its own heat and light
apparent brightness how bright a start looks from Earth
absolute brightness how bright a star really is
light-year distance light travels in one year
rotation to spin on an axis
reflect to bounce back light
solar eclipse an event during which the moon's shadow blocks all or some of the sun's light
Created by: user-1754102
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