A large celestial body that is composed of heat and gas.

The brightness of a star that can be seen from Earth.

The actual brightness of a object.

Is a measure of how bright a star would be seen in a standard distance.

The measure of how hot or cold an object would be.

The location on the H-R diagram where most stars lie.

The distance of how long it is in space.

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Vocabulary on stars

Term	Definition
Star	A large celestial body that is composed of heat and gas.
Apperent magnitude	The brightness of a star that can be seen from Earth.
Luminosity	The actual brightness of a object.
Absolute magnitude	Is a measure of how bright a star would be seen in a standard distance.
Temperature	The measure of how hot or cold an object would be.
Main-sequence stars	The location on the H-R diagram where most stars lie.
Astronomical-unit	The distance of how long it is in space.