Earth In space
The orbit of an object around another object is called?
What is Revolution
The average distance between earth and the Sun
What is an astronomical Unit
The time light travels in one year
What is light-year
The rust planet
What is Mars
A large ball of gas held together by gravity
What is a Star
As the lit portion of the moon becomes larger, the moon is?
What is waxing
Name the 4 inner planets in order
What is Mercury, Venus, earth, Mars
Shell of cooler hydrogen above a stars core
What is the Radiative zone
This is the smallest planet in the solar system
What is Mercury
The widest most outer layer of a star
What is the Corona
The movement of one solar system object into the shadow of another object
What is Eclipse
Small rocky object that orbit the sun
What is an Asteroid
Graph used to measure a stars luminosity compared to its temperature
What is the Hertzsprung-Russel diagram
The largest planet in the solar system
What is Jupiter
An object whose gravity is so great light can not escape
What is a black Hole
Orbits the sun, is spherical shaped
What is a Planet
Made up of gas, dust, and ice
What is a comet
Process when nuclei of several atoms combine into one large nucleus
What is nuclear Fusion
This planet is known as earth's twin
What is Venus
An enormous explosion that destroys a star
What is a Supernova
Periodic rise and fall of the ocean's surface caused by gravitational force between earth, moon, and the sun
What is Tides
When a planets atmosphere traps solar energy and causes the surface temperature to increase
What is the greenhouse effect
How bright an object appears from earth
What is apparent magnitude
This planet's interior is partially frozen water and ammonia with rock and iron core.
What is Neptune
What is a White Dwarf