Hertzsprung-Russell Diagram Practice

Front

What is the Hertzsprung-Russell Diagram?

Back

A graphical representation of stars plotted according to their brightness (luminosity) and temperature (color).

Front

What are the main types of stars found on the HR Diagram?

Back

Main sequence, giant, supergiant, and white dwarf.

Front

What is a main sequence star?

Back

A star that is in the stable phase of hydrogen burning in its core, where it spends most of its life.

Front

What characterizes a giant star?

Back

A star that has expanded and cooled after exhausting the hydrogen in its core, resulting in a larger radius and lower temperature.

Front

What is a supergiant star?

Back

An extremely large star that is much brighter than a giant star, often at the end of its life cycle.

Front

What is a white dwarf?

Back

A small, dense star that is the remnant of a star that has exhausted its nuclear fuel and shed its outer layers.

Front

Which star is known as a yellow main sequence star?

Back

Procyon.

Front

Which star is cooler than the Sun?

Back

Pollux.

Front

Which star is hotter than Vega?

Back

Spica.

Front

Which star is brighter than the Sun?

Back

Altair.