Show:
Characteristics of Stars
Lifespan of Stars
Star Systems
Galaxies
An Expanding Universe
100
the color for the hottest stars
What is the color blue?
100
nebula
What is the place where stars are born?
100
two stars together
What are binary stars?
100
the Milky Way Galaxy shape
What is a spiral galaxy?
100
A cosmic explosion that formed the universe
What is The Big Bang Theory?
200
a device that breaks light into colors to detect certain gases
What is a spectograph?
200
an explosion of a supergiant star
What is a supernova?
200
this has a loose, disorganized grouping of a few thousand stars called
What is an open cluster?
200
galaxies that do not have a standard shape
What is an irregular galaxy?
200
The farthest galaxy away is the fastest moving
What is Hubble's Law?
300
absolute brightness
What is the brightness a star would have if it were at a standard distance from Earth?
300
A white dwarf can become this
What is a black dwarf?
300
a few million stars
How many stars are in a globular cluster?
300
grouping of stars, star systems, gas, dust
What is a galaxy?
300
13.7 billion years
How old is our universe?
400
how far light travels in a year
What is 9.5 million million kilometers?
400
two things a supergiant can turn into after a supernova
What is a neutron star and a black hole?
400
What H-R stands for
What is Hertzsprung-Russell?
400
when one star periodically blocks out another in the same star system
What is an eclipsing binary star?
400
they discovered background cosmic radiation
Who is Penzias and Wilson?
500
the five ways to classify stars
What are color, temperature, size, composition and brightness
500
the only way you can detect a black hole
What are x-rays?
500
The Pleiades is an open cluster and is also known as the...
What are the "Seven Sisters?"
500
25,000 light years away is the center of this
How far is the Milky Way Galaxy center?
500
small asteroid-like and comet-like bodies
What are planetesimals?