Vocabulary
The Lunar Cycle
Seasons
Galaxies
HR Diagram
100
What does Rotation mean?
Spinning on its axis
100
How many days does it take to go from phase to phase?
3.5 days
100
How many seasons are there?
4
100
What is a spiral galaxy?
A flat, disk-shaped galaxy
100
What is a nebula?
A huge cloud of gas and dust held by gravity
200
What does the equator do?
Divides the earth in half giving us the Northern Hemisphere and Southern Hemisphere
200
How many days does it take for the moon to revolve around the earth?
27.3 days
200
Why do seasons occur?
Because of Earths tilt on its axis and revolution around the sun
200
In what type of galaxy do we live in?
Spiral Galaxy
200
What category is Mira in?
Giant
300
What is a galaxy?
Huge system of millions or billions of stars, with gas and dust held by gravity
300
How many days does it take for the new moon to get back at new moon?
29.5 days
300
When does the solstice occur?
Happens when the sun reaches its highest or lowest point in the sky at noon
300
How are galaxies classified?
By their shape
300
In which region is the sun located?
Main Sequence
400
What is the HR diagram?
A chart that graphs stars brightness and temperature
400
If there is a new moon on December 10th what would there be on December 17th?
1st Quarter
400
What is the difference between the summer solstice and the winter solstice?
Summer Solstice has more sunlight and Winter Solstice has less sunlight
400
What are the three types of galaxies are there?
Spiral, Elliptical, Irregular
400
What color is Rigel?
Blue-White
500
How is the color of stars represented?
Blue- Hot
Yellow- Average
Red- Cold
500
Why does the moon change shapes?
Only certain portions of the moon is seen by the sun
500
What do the Spring Equinox and Fall Equinox have in common?
Equal day and night
500
What is a Irregular galaxy?
A random, scattered galaxy that doesn't form and shape
500
Where is Bernard's Star located? What color is it?
Bottom Right, Red