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Object in sky


asteroid a large rock in the solar system; often called a minor planet
astronomy the study of the planets, stars, galaxies, and all other objects in space
aurora the colorful light seen over the polar regions
celestial sphere an imaginary dome surrounding Earth used to help astronomers explain where objects are found in the sky
coma the cloud of dust and gases surrounding the nucleus of a comet
comet a combination of ice, dust, and rock material that moves in an orbit around the sun
constellation star groups that resemble familiar objects or characters
dwarf star a small star
impact a collision of two objects
light-year the distance light travels in one year
magnitude the brightness of a star as seen from Earth
meteor a meteoroid (space rock or dust from a comet or broken-up asteroid) that burns up in the earth's atmosphere
meteorite a meteoroid that hits the earth's surface
Created by: AHoldeman