Flashcardizz - Star Classification Review

Front

What are the primary gases that most stars are made of?

Back

Hydrogen and Helium.

Front

Which star is known to be very dim and red in color?

Back

Barnard's star.

Front

Why does the sun appear brighter than the star Rigel to an observer on Earth?

Back

The sun is closer to Earth than Rigel.

Front

What color of star is considered the coolest?

Back

Red.

Front

Which type of star is near the end of its life cycle?

Back

White dwarfs.

Front

What is the main sequence in star classification?

Back

A continuous and distinctive band of stars that appears on plots of stellar color versus brightness.

Front

What is a white dwarf?

Back

A small, dense star that is the remnant of a low or medium mass star after it has exhausted its nuclear fuel.

Front

What is a supergiant star?

Back

A very large star that is even more massive than a giant star, often in the later stages of stellar evolution.

Front

What does the color of a star indicate about its temperature?

Back

The color of a star indicates its surface temperature; blue stars are the hottest, while red stars are the coolest.

Front

What is luminosity in the context of stars?

Back

Luminosity is the total amount of energy emitted by a star per unit of time.