Characteristics of Stars
Galaxies
The Universe
Life Cycle of Stars
Grab-Bag
100
The three categories for how we classify stars.
What is size, temperature, and brightness?
100
The four categories of galaxies.
What are spiral, barred spiral, elliptical, and irregular?
100
All of space and everything in it.
What is the universe?
100
Where stars are born.
What is a nebula (or stellar nursery)?
100
When one star blocks the light from another star, it is called an...
What is an "eclipsing binary"?
200
The color of "cool" stars.
What is red?
200
A giant structure that contains hundreds of billions of stars.
What is a galaxy?
200
The theory scientists agree upon for how the universe came to be.
What is the Big Bang Theory?
200
The stage in a star's life cycle when it is burning fuel.
What is the main-sequence?
200
Our star will burn out in how many years (approximately)?
What is 5 billion years?
300
Define parallax.
What is: the apparent change in position of an object when observed from different places?
300
The shape of the Milky Way.
What is a spiral?
300
How long ago the universe was thought to have been formed.
What is 14.5 billion years ago?
300
The type of star that will eventually become a black hole.
What is a giant or supergiant (large-mass)?
300
This color star is the hottest.
What is blue-white?
400
Name one "red" star.
What is Betelgeuse?
400
The name of the astronomer who created the classification system for galaxies.
Who is Edwin Hubble?
400
Proof that the universe is expanding.
What is the red-shift (or galaxies are moving away from us)?
400
When our sun dies, it will likely become this type of star.
What is a black dwarf?
400
Increasing the baseline when using parallax causes the object to....
What is "move more"?
500
Star 1 is closer to Earth than Star 2. Star 1 and star 2 have the same apparent magnitude. Which star has a greater absolute magnitude?
What is star 2?
500
The closet galaxy to the Milky Way.
What is the Large Magellanic Cloud?
500
The name of the pearl-sized structure that was the universe before it exploded.
What is a singularity?
500
The definition of nuclear fusion.
What is: when hydrogen atoms become helium atoms and release energy?
500
The length of time a star lives depends on this.
What is its mass- larger stars live shorter lives?
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