Stars Flashcards
What is a star
A star is a bright ball very hot gas held together by its own gravity
A star is made up by wht
Hydrogen and helium
A star
is a process called what to produce heat and light
Nuclear fusion
Stars are usually between how many years old
10 billion
The sun is the closest star to the earth and is estimated to be how many years
Four. 5 billion
Where do stars come from
Stars form from a nebula
What type of stars are there
Different types of stars are classified based on their color and temp
Very hot hot stars give off what color
Blue
Cooler stars give off what color
Red
What star is most common
Red dwarf star
What do red dwarf stars do
They burn their fuel very slowly this allows them to last long as 100 billion years
What is a brown dwarf star
A brown dwarf star is a star that did not get hot enough to trigger a nuclear fusion and gives us very dim light
What type of star is our sun
The sun is a yellow dwarf star
What is a yellow dwarf star
Yellow dwarf star begins to run out of hydrogen their core shrinks becomes hotter and pushes out into a red giant
What do supergiant stars do
Supergiant stars make our summer tiny in comparison as they can be 20 times the mass of our sun and beat 1000 times the size of many stars
