Vocabulary
The imaginary line around which the Earth rotates
What is the Earth's axis?
The length of time it takes for the Earth to revolve around the sun.
What is 365 days?
The shape planets take because of the force of gravity.
What is a sphere?
How much light a star emits.
What is luminosity?
The pattern depicted in image 1.
What is the pattern of shadows?
The unit equivalent of the distance from the sun to the Earth.
What is an astronomical unit?
The season in the Northern Hemisphere when the north pole is pointed towards the sun.
What is summer?
When this factor increases, gravity increases.
What is mass?
A collection of stars that together seem to form a picture.
What is a constellation?
The pattern depicted in Image 2
What is seasonal constellations?
The moon's shape a few days after the full moon.
What is a waning gibbous?
The season in the Southern Hemisphere when the Northern Hemisphere is in winter?
What is summer?
When this factor increases, gravity decreases.
What is distance?
The moon phase we see when the Earth is lined up between the sun and the moon.
What is a full moon?
The pattern depicted in Image 3.
What is seasons?
The point towards which all gravity pulls.
What is the center of mass?
The number of times Earth rotates during one revolution.
What is 365?
The equation to find out the weight of an object.
What is mass times gravity?
How long it takes for us to see the light from a star that is 45 light years away.
What is 45 years?
The pattern depicted in Image 4.
What is the moon's phases?
The distance of a single light year as measured in miles.
What is 6 trillion miles?
This Indian astronomer realized the Earth rotates in approximately 500 CE.
Who is Aryabhata?
Your weight on Jupiter.
What is twice your weight on Earth?
The name of the biggest star in the constellation Orion.
What is Betelgeuse?
What is a new moon?