Hertzsprung-Russell Diagram

Front

Which of the following best describes a star? A star is a celestial body ---

Back

composed of gases that emit light due to nuclear reactions

Front

Based on this diagram which type of stars would belong to spectral class M and have the lowest luminosity? Options: Main Sequence Stars, Giants, Super Giants, White Dwarfs

Back

Main Sequence Stars

Front

Betelgeuse is a _____

Back

Cool and Bright Star

Front

Sirius B is a _____

Back

Hot and Dim Star

Front

What are the three types of galaxies? Options: Spiral, Elliptical, Ambiguous, Whirlpool, Ellipse, Irregular, Spiral, Elliptical, Irregular, Swirly, Fuzzy, Uh...

Back

Spiral, Elliptical, Irregular

Front

What is the name of the largest stars?

Back

Supergiants

Front

Black holes are best described as:

Back

a place in space where gravity pulls so much even light can't get out

Front

Analyze this HR Diagram. Which group of stars is considered to have lower than average luminosity as well as a higher than average temperature? Options: Giants, Main Sequence, White Dwarfs, Super Giants

Back

White Dwarfs

Front

What type of waves is a black hole emitting if the wavelength is 1.41x10^-12 Hz? Options: microwaves, visible light, x-rays, gamma rays

Back

gamma rays

Front

Analyze this HR Diagram. Which group of stars is considered to have higher than average luminosity as well as a lower than average temperature? Options: Giants, Main Sequence, White Dwarfs, Super Giants

Back

Super Giants