HR Diagram
Flashcard
•
Physics
•
8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the HR Diagram?
Back
The HR Diagram, or Hertzsprung-Russell Diagram, is a scatter plot that shows the relationship between the stars' absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.
2.
FLASHCARD QUESTION
Front
What are the main categories of stars in the HR Diagram?
Back
The main categories of stars in the HR Diagram are Main Sequence, Giants, Supergiants, and White Dwarfs.
3.
FLASHCARD QUESTION
Front
What is a Light Year?
Back
A Light Year is the distance that light travels in one year, approximately 5.88 trillion miles or 9.46 trillion kilometers.
4.
FLASHCARD QUESTION
Front
Where is our Sun located on the HR Diagram?
Back
Our Sun is located in the Main Sequence category of the HR Diagram.
5.
FLASHCARD QUESTION
Front
What type of stars are considered Giants?
Back
Giants are stars that are larger and more luminous than Main Sequence stars but smaller than Supergiants.
6.
FLASHCARD QUESTION
Front
What is the temperature range of Main Sequence stars?
Back
Main Sequence stars have a wide range of temperatures, typically from about 2,500 K to over 30,000 K.
7.
FLASHCARD QUESTION
Front
What is the significance of the Main Sequence in the HR Diagram?
Back
The Main Sequence is significant because it contains the majority of stars, including our Sun, and represents a stable phase of stellar evolution.
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