Section 1

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H-R Diagram

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Last updated

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Date created

Mar 1, 2020

Cards (15)

Section 1

(15 cards)

H-R Diagram

Front

Hertzsprung-Russell diagram, a graph that shows the relationship between a star's surface temperature and brightness.

Back

asterism

Front

A group of stars in the sky that forms a pattern, but it is not officially recognized. Ex. Big Dipper, Orion's Belt

Back

neutron star

Front

After a supernova the star is not totally destroyed, the core becomes this extremely dense star that spins rapidly.

Back

nebula

Front

A large cloud of interstellar matter (dust and gas) in space.

Back

white dwarf

Front

The end of the life of a sun-like star. Nuclear fusion is no longer taking place.

Back

sun-like star

Front

A star that is similar to our sun in size.

Back

massive star

Front

A type of star that is very large and may turn in to a Red Supergiant.

Back

constellation

Front

An official group of stars that form a pattern in the sky. Ex. Ursa Major, Orion

Back

red giant

Front

A star that expands and cools once it runs out of hydrogen fuel.

Back

red supergiant

Front

When a massive star expands and cools as it runs out of hydrogen.

Back

star

Front

An object in space that produces its own energy, including light and heat, through nuclear reactions.

Back

supernova

Front

An explosion of a massive star.

Back

protostar

Front

A contracting cloud of gas and dust with enough mass to form a star.

Back

galaxy

Front

A grouping of millions/billions of stars and interstellar matter that are held together by gravity. Ex. Milky Way

Back

black hole

Front

A highly dense remnant of a star that has so much gravity not even light can escape from it.

Back