Show:
Characteristics of Stars
Star Measuring
Lives of Stars
Deaths of Stars
Star Systems and Galaxies
100
This person studies stars...
What is an astronomer?
100
Astronomers use this unit to measure distances between the stars...
What is a light-year?
100
This is a large cloud of gas and dust spread out in immense volume...
What is nebula?
100
This is what happens when a star runs out of fuel...
What is it becomes a white dwarf, a neutron star, or a black hole?
100
This is groups of two or more stars...
What is a star system?
200
These are imaginary patterns of stars...
What is a constellation?
200
Astronomers use this to measure distances to nearby stars...
What is parallax?
200
This is a contacting cloud of gas and dust with enough mass to form a star...
What is a protostar?
200
These are about the size of Earth but have as much mass as the sun and are formed from the blue-white core of a star that is left behind and cools...
What are white dwarfs?
200
A system in which one star periodically blocks the light from another...
What is eclipsing binaries?
300
These stars are about the same size of Earth...
What is a white dwarf star?
300
This is the apparent change in position of an object when you look at it from different places...
What is parallax?
300
This determines how long a star will live...
What is mass?
300
This is a high-mass star that quickly evolved into a supergiant and exploded...
What is a supernova?
300
Astronomers classify most galaxies into these types...
What is spiral galaxy, irregular galaxy, and elliptical galaxy?
400
These are characteristics used to classify stars...
What is color, temperature, size, composition, and brightness?
400
This is used to plot the surface temperatures of stars on the x-axis and their absolute brightness on the y-axis...
What is The Hertzsprung-Russell Diagram?
400
This is when a star is born...
What is when contracting gas and dust from a nebula become so dense and hot that nuclear fusion starts?
400
These are remains of high-mass stars that are even smaller and denser than white dwarfs...
What are neutron stars?
400
This is a huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity...
What is a galaxy?
500
This device breaks light into colors and produces an image of the resulting spectrum...
What is a spectrograph?
500
More than 90% of all stars are these type of stars...
What is main sequence?
500
This is how long a star that is the mass of the sun will live...
What is about 10 billion years?
500
This is the remains of the most massive stars when they die...
What is a black hole?
500
This is the type and name of the galaxy in our solar system...
What is the spiral galaxy called The Milky Way?