Galaxies, Stars, & the HR Diagrams

Front

What are the characteristics of red stars?

Back

Red stars are the coolest stars in the universe.

Front

What category contains the most stars?

Back

The Main Sequence category contains the most stars.

Front

How is our sun classified compared to other stars?

Back

Our sun is considered medium size with medium temperature.

Front

Which color of star is the coldest?

Back

The coldest star is the Red Star.

Front

Which star is an example of a main sequence star?

Back

Vega is considered a main sequence star.

Front

What is a galaxy?

Back

A galaxy is a massive system that contains stars, stellar remnants, interstellar gas, dust, and dark matter.

Front

What is the main sequence in the HR diagram?

Back

The main sequence is a continuous band of stars that represents the majority of stars in the universe, where they spend most of their life cycle.

Front

What is the significance of the HR diagram?

Back

The HR diagram is a tool used to classify stars based on their luminosity and temperature.

Front

What type of stars are supergiants?

Back

Supergiants are very large stars that are much brighter than the sun and have a short lifespan.

Front

What is the temperature range of main sequence stars?

Back

Main sequence stars can range from very hot (blue) to cooler (red) temperatures.