Show:
Color & Composition of Stars
Classifying Stars
Brightness of Stars
Motion of Stars
Anything goes!
100
What stars are made of.
What are a mix of gases?
100
How scientists classify stars.
What are temperature and brightness?
100
The brightness of a star as it's seen from earth.
What is apparent magnitude.
100
A star's apparent shift in its position, due to the Earth's revolution around the Sun.
What is parallax?
100
The two main elements that make up most stars.
What are helium and hydrogen?
200
This color is the hottest temperature of a star.
What is blue?
200
Another term for "brightness."
What is magnitude?
200
The actual brightness of a star.
What is absolute magnitude?
200
The motion that causes daytime and nighttime.
What is the earth's rotation?
200
The reason that the actual motion of a star is hard to see.
What is because of the great distance from earth to the stars?
300
A rainbow of colors produced when light travels through a prism.
What is a spectrum?
300
The color of the coolest star.
What is red?
300
The distance light travels in one year (94.6 trillion km)
What is a light-year?
300
The Earth's tilt and revolution around the sun cause this.
What are the four seasons?
300
The reason some stars appear brighter than others.
What is the brighter stars are closer to earth than the dimmer stars.
400
The reason stars have different colors.
How do scientists know that stars burn at different temperatures and are made of different elements (gases)?
400
The smallest numbers represent the magnitude of these stars.
What are the brightest stars.
400
The reason the universe is older than we see it.
What is the great distance between stars & earth...it takes the light from stars millions of years to reach us.
400
The reason that stars seem to move in the night sky?
What is because of the earth's rotation?
400
In the diagram showing star brightness and temperature, where you would find the sun.
What is in the Main Sequence diagonal.