This is made of dust and gases.
What is a nebula?
When the star begins to run out of fuel, a low- to medium-mass star becomes this.
What is a giant?
This determines the color of a star
What is a star's temperature?
Two types of star clusters.
what are globular and open clusters?
When a white dwarf stops glowing it is called this.
What is a black dwarf?
The hot core of a giant star is called this.
What is a white dwarf?
A spinning neutron star that emits periodic light and radio waves at regular intervals.
What is a pulsar?
Red giant, main sequence, white dwarf in proper life-cycle order.
What is main sequence, red giant, white dwarf?
The event that takes place when a supergiant explodes.
What is a supernova?
Most scientists believe that all stars begin as this.
What is a nebula?
Two stars that orbit around each other are known as this.
What is a binary star?
A low number on the apparent magnitude scale means this about a star.
What is a brighter star?
The dense core that is left behind after a supernova.
What is a neutron star?
The name for a large-mass star.
The ________ of a star refers to the rate at which it radiates energy.
What is luminosity?
These two factors determine a main sequence star's absolute magnitude.
What are the star's surface temperature and size?
When the dust and gases in a nebula contract enough so that nuclear fusion occurs, it is called this.
What is a main sequence star?
The most massive stars may become these after they explode.
What are black holes?
Three pieces of information about a star shown on the H-R diagram.
What are absolute magnitude, luminosity, size, and surface temperature. (Any 3 are acceptable)
An exoplanet is often detected by the ________ of the star it is thought to orbit.
What is wobble?