Review over HR Diagram

Front

What is the HR Diagram?

Back

The HR Diagram (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

How is our sun classified in terms of size and temperature?

Back

Our sun is classified as medium size with medium temperature.

Front

Where are the dim stars located on the HR Diagram?

Back

The dim stars are located at the bottom of the HR Diagram.

Front

What is the life cycle of average-sized stars?

Back

Average-sized stars start as a nebula and end as a white dwarf.

Front

Which type of star is the coldest?

Back

The coldest type of star is the Red Star.

Front

What is the life cycle of massive-sized stars?

Back

Massive-sized stars start as a nebula and end as a black hole.

Front

What does the vertical axis of the HR Diagram represent?

Back

The vertical axis of the HR Diagram represents the luminosity or brightness of stars.

Front

What does the horizontal axis of the HR Diagram represent?

Back

The horizontal axis of the HR Diagram represents the temperature of stars, typically decreasing from left to right.

Front

What are the main categories of stars on the HR Diagram?

Back

The main categories of stars on the HR Diagram include main sequence stars, giants, supergiants, and white dwarfs.

Front

What is a main sequence star?

Back

A main sequence star is a star that is in the stable phase of its life cycle, where it fuses hydrogen into helium in its core.