HR-Diagram

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.

Front

What spectral class does our star, the sun, belong to?

Back

G

Front

What characteristics are used to classify stars?

Back

Temperature/color and brightness.

Front

Knowing the color of a star also tells us its __________.

Back

temperature.

Front

Which star is hotter than Deneb?

Back

Regel.

Front

As a whole, Giants are considered hotter than White Dwarfs. True or False?

Back

False.

Front

What does a star's color indicate?

Back

A star's color indicates its temperature; blue stars are hotter, while red stars are cooler.

Front

What are the main types of stars classified in the HR-Diagram?

Back

Main sequence stars, giants, supergiants, and white dwarfs.

Front

What is the relationship between a star's brightness and its temperature?

Back

Generally, hotter stars are brighter than cooler stars.

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, where it spends most of its life.

Tags

NGSS.HS-ESS1-1