Telescopes
Characteristics of Stars
Lives of Stars
Star Systems and Galaxies
The Exanding Universe
100
Reflective and refracting telescopes gather and focus this type of light.
What is visible light?
100
This is the distance light travels in a year.
What is a light-year?
100
This is born when nuclear fusion begins.
What is a star?
100
Groups of two or more stars are called this.
What is a star system?
100
This the theory that astronomers have developed to describe the formation of the solar system.
What is the big bang theory?
200
This contains all the different types of electromagnic waves.
What is the electromagnetic spectrum?
200
The color of the coolest stars.
What is red?
200
This determines whether a protostar becomes a star.
What is surface temperature?
200
This is a loose grouping of a few thousand stars.
What is an open cluster?
200
Small asteroid-like bodies that became the building blocks of planets.
What are planetetismals?
300
A range of colors formed when white light passes through a prism.
What is a spectrum?
300
The area of the H-R diagram where a star's brightness increases as its temperature increases.
What is the main sequence?
300
The lifetime of a star depends on this.
What is mass?
300
The Milky Way is this type of galaxy.
What is a spiral galaxy?
300
This states that the farther away a galaxy is, the faster it is moving away from us.
What is Hubble's law?
400
This type of telescope uses a mirror instead of an objective lens.
What is a reflecting telescope?
400
This is used to determine a star's distance from Earth.
What is a parallax?
400
This is how long a star can live for.
What is 10 million to 200 billion years?
400
This type of galaxy has almost no gas or dust between the stars.
What is an elliptical galaxy?
400
This will most likely expand forever.
What is the universe?
500
Telescopes are placed here to be above part of the atmosphere.
What are mountaintops?
500
The three characteristics used to classify stars.
What is size, brightness, and temperature?
500
The explosion of a dying high-mass star.
What is a supernova?
500
These can be idenitified because they become dimmer at regular intervals.
What are eclipsing binaries.
500
This is the mysterious force that may be causing the expansion of the universe to accelerate.
What is dark energy?
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