What determines a star's color?
HR diagram and Cosmos

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Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A star's temperature determines its color.
2.
FLASHCARD QUESTION
Front
What is the Universe?
Back
Everything that exists, including all matter and energy, mostly consists of empty space.
3.
FLASHCARD QUESTION
Front
What does the Hertzsprung-Russell diagram graph?
Back
The Hertzsprung-Russell diagram graphs stars' luminosity and temperature.
4.
FLASHCARD QUESTION
Front
What is a comet?
Back
An object orbiting the Sun, made of ice and rock, that has a tail pointing away from the Sun.
5.
FLASHCARD QUESTION
Front
What type of star is Aldebaran?
Back
Aldebaran is a red giant.
6.
FLASHCARD QUESTION
Front
What is luminosity in relation to stars?
Back
Luminosity is the total amount of energy emitted by a star per unit time.
7.
FLASHCARD QUESTION
Front
What is a main sequence star?
Back
A main sequence star is a star that is in the stable phase of hydrogen burning in its core.
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