Colors of Stars
Composition of stars
Classification of stars
Random
100
Which one is hotter, a red or blue star?
Blue Star.
100
The band of color produced white light when color passes through a prism is called a _______.
Spectrum.
100
Name a "sophisticated" piece of equipment used to help classify stars.
Telescope
100
Why do stars appear to move?
The earth rotates.
200
What is a stars atmosphere made out of?
Cool Gases.
200
Describe was a spectrograph is.
A tool that breaks a stars light into a sectrum
200
Brighter stars are called the _____ magnitude.
First.
200
Is it possible for stars to actually move?
Yes, but because of their long distance from earth, it is hard to see.
300
What is the inner layer of a star like?
Hot and dense.
300
Whats a one thing a spectrograph does?
Gives information like composition and temperature.
300
What is the highest magnitude astronomers can find with a telescope?
The 29th
300
Define a light year.
The distance that light travels in a year.
400
Different _______ absorb different _______.
Elements, Wavelenths.
400
Some people compare emission lines to what body features?
Fingerprints.
400
Dimmer stars are called the _____ magnitude.
Sixth.
500
How can scientists tell what stars are made up of?
By finding out what they absorb. (Emission Lines)
500
Define absorption spectrum.
When light from a hot solid or dense gas passes through a less dense, cooler gas.
500
Positive numbers mean the star is ________. Negative numbers mean the star is ________.
1.) Dimmer 2.) Brighter
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