HR Diagram

Front

What does the HR Diagram show?

Back

The HR Diagram shows the relationship between a star's surface temperature and its absolute magnitude.

Front

What can knowing the color of a star tell us?

Back

Knowing the color of a star can tell us its temperature.

Front

In which category is our Sun located on the HR Diagram?

Back

The Sun is located in the Main Sequence category.

Front

Which star is cool, dim, and red according to the HR Diagram?

Back

Barnard's star is cool, dim, and red.

Front

Why are nebulae considered 'Stellar Nurseries'?

Back

Nebulae are considered 'Stellar Nurseries' because stars form from them.

Front

What is the significance of the absolute magnitude in the HR Diagram?

Back

Absolute magnitude measures the intrinsic brightness of a star, independent of its distance from Earth.

Front

How does temperature affect a star's color?

Back

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

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.

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.

Front

What is a White Dwarf?

Back

A White Dwarf is a small, dense star that is the remnant of a star that has exhausted its nuclear fuel.