Vocab
luminous and bright points
What is a star?
stars formed in clouds of gas and dust, known as nebulae.
How are stars formed?
by their colors and their temperature.
How are stars classified?
When there are no more elements for the star to fuse, the core succumbs to gravity and collapses, creating a violent explosion.
What is a Supernova?
The exact lifetime of a star depends very much on its size.
What do stars depend on ?
by the temperature of the star.
What is stars color determined by ?
After a supernova explosion, the leftover material in the core is extremely dense. If the core is less than about four times the mass of the Sun, the star becomes this
What is a Neutron star?
provides enough energy to make them shine brightly for many years.
What do Nuclear reactions provide?
30,000 K or more
What is the highest range ?
a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles
What is Nuclear fusion reaction?
in size, color, and class at least once in their lifetime.
How are stars mostly changed ?
a letter. Each letter corresponds to a color, and also to a range of temperatures.
What are the class of stars given?
is an apparent shift in position that takes place when the position of the observer changes.
What is a Parallax ?
are similar to living things such as when they are born, then grow, change over time, and eventually die.
What is the lifecycle of stars are similar to?
blue
30,000 K or more
Zeta Ophiuchi
What is class O?