Flashcardizz - Star Classification Review

Front

What characteristic determines the color of a star?

Back

Temperature

Front

What does the blue color of a supergiant star indicate?

Back

It is very hot.

Front

Why does the sun appear brighter than the star Rigel?

Back

The sun is closer to Earth than Rigel.

Front

What determines the life cycles of stars?

Back

Mass (size).

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Front

What is the approximate surface temperature of Alcor according to the HR diagram?

Back

10,000 K.

Front

What is luminosity in the context of stars?

Back

Luminosity is the total amount of energy emitted by a star per second.

Tags

NGSS.HS-ESS1-1

Front

How does distance affect the brightness of a star as seen from Earth?

Back

The closer a star is, the brighter it appears.

Front

What is the significance of a star's mass?

Back

A star's mass determines its life cycle and eventual fate.

Tags

NGSS.HS-ESS1-1

Front

What is the HR diagram?

Back

The Hertzsprung-Russell diagram is a scatter plot of stars showing the relationship between their absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

Tags

NGSS.HS-ESS1-3

Front

What does a star's temperature indicate about its color?

Back

Hotter stars emit blue light, while cooler stars emit red light.