Universe & HR Diagram

Flashcard
•
Science
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the H-R Diagram?
Back
The Hertzsprung-Russell (H-R) Diagram is a scatter plot of stars showing the relationship between their absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.
2.
FLASHCARD QUESTION
Front
What type of star is Barnard's star?
Back
Barnard's star is a cool, dim, red star.
3.
FLASHCARD QUESTION
Front
What is a nebula?
Back
A nebula is a large cloud of gas and dust in space, often the birthplace of stars.
4.
FLASHCARD QUESTION
Front
What are the three types of galaxies?
Back
The three types of galaxies are Spiral, Irregular, and Elliptical.
5.
FLASHCARD QUESTION
Front
What is the absolute magnitude of the brightest star on the H-R Diagram?
Back
The absolute magnitude of the brightest star on the H-R Diagram is -4.8.
6.
FLASHCARD QUESTION
Front
What is a supernova?
Back
A supernova is a powerful and luminous explosion of a star, marking the end of its life cycle.
7.
FLASHCARD QUESTION
Front
What is the main characteristic of a spiral galaxy?
Back
A spiral galaxy has a flat, rotating disk containing stars, gas, and dust, along with a central concentration of stars known as the bulge.
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