Vocabulary
Large celestial body that is composed of gasses and emits of light.
Star
Our sun is what color star?
Yellow
Exact lifetime of a star depends on what?
Which part is it called after the death of a massive star that no energy can escape?
Black Hole
Stars use what gas as fuel?
Hydrogen
This is the actual brightness of a star?
Luminosity
What two gasses make up stars?
Hydrogen and Helium
What is the hottest color star?
Blue
Plasma
How is the color of a star determined by?
How hot the surface is.
This measures a star’s brightness seen on Earth
Apparent magnitude
Very rare and extremely large stars are what?
Supergiant stars
This is the smallest star.
White dwarf
What is the coolest color star?
Red
Rare and large stars are what?
Giant stars
Three or more stars that are bound together by gravity.
Multiple Stars
How are stars measured in?
Solar radii
What is the last stage in the evolution of a average star like our sun?
Black dwarf
What force causes dust particles to stick together in the nebula?
Gravity
Measure of how bright a star would be in a distance.
Absolute magnitude
Helium is the result of what when hydrogen atoms combine?
Nuclear Fusion
Name the order of the color of stars from hottest to coolest.
Blue, White-blue, White, Yellow-white, Yellow, Orange, and Red
What is the densest star?
Neutron Star
What is left after a star dies?
Black dwarfs, black hole, and neutron stars
What is the biggest star in the universe?
Massive star