The sun and all the natural objects that orbit it.
Solar System
The amount of time a planet takes to complete its orbit
period
small chunks of rock or metal in space
meteoroid
The imaginary band in which the sun, moon and planets appear
zodiac
The distance between the Earth and Sun
The study of God's creation beyond our atmosphere
Astronomy
Known as wanderers in the sky
planets
a Stony or metallic object that orbits to sun but doesn't have a spherical shape
asteroid
one of the 88 divisions of the celestial sphere made by astronomers
constellation
distance light travels in one year
light year
A sun-centered system where planets go around the sun.
Heliocentric
planets that are made mostly of gases and are much larger than earth
gas giants
an asteroid size object of rock and frozen material that forms a bright tail
comet
the speediest planet
Mercury
dark, cooler patches on the sun
sunspots
Circle around due to gravity
orbit
The only planet suitable for life in our solar system
earth
What causes a meteor shower
When the earth passes through a meteor stream
Has a large system of rings
Saturn
burst of energy in the spicules
solar flares
An earth-centered universe
geocentric
moving backward from east to west
retrograde
a large ring of asteroids between the orbits of Mars and Jupiter
asteroid belt
Sometimes called earth's twin
a huge hot blanket of gas around the sun
corona