Stars with less mass will last longer than stars with more mass.

White dwarfs are the remnants of a supernova.

A refracting telescope uses a mirror to collect and focus light.

The sun is part of an elliptical galaxy.

The brightness of a star if it were a standard distance from Earth is the star's absolute magnitude.

On the HR Diagram, the temperature is found on the y-axis and the brightness on the x-axis.

Waves are arranged on the Electromagnetic Spectrum based on their wavelength and frequency.

On the HR Diagram, the majority of stars fall in which category?

A light-year is equal to

It takes approximately 8 minutes and 20 seconds for light produced by the Sun to reach the Earth. Therefore, the Sun in located

Stars are classified according to their

The lifetime of a star depends on its

The most common elements found in stars are

A supernova is the explosion of dying

When small or medium-sized stars begin to run out of fuel, they first become

Black holes form from the remains of stars that

The Milky Way galaxy is what type of galaxy?

The galaxies in the universe vary in age. What type of galaxy will the oldest galaxy in the universe most likely be?

One piece of evidence that supports the big bang theory is the observation that most galaxies are

Astronomers can determine the composition and temperature of a star by using an instrument called a(n)

The apparent shift in position of an abject when viewed from two different places is called

The Hertzsprung-Russell diagram shows the relationship between a star's temperature and ­­­­­_________ magnitude.

All stars begin as part of a large cloud of gas and dust called

As you move from right to left across the H-R diagram, the trend of the main sequence stars could be described as

The white dwarfs are a group of stars that are

Name the star that red and a giant.

Name the star that has the greatest absolute magnitude.

Which category of stars is never found in the blue color?

Compare our Sun to Alpha Centauri A in terms of color, brightness, and surface temperature.

Which of the following elements is/are represented in the star spectrum?

Analyzing the spectrum, what can be said about the stars movement?

Which type of telescopes are designed to collect and focus visible light?

Identify the correct location of the Earth in the Milky Way Galaxy based on the image.

The theory that most astronomers have accepted to describe the beginning of the universe is called the

The star Beta Andromedae is 90 light years away. In what year would the light that leaves today reach Earth?

A star that is several times brighter than the sun with a temperatue lower than 4,000 K would be

Identify stage F in the image.

In the image, which stage represents a black dwarf?

In the image, which stage represents a neutron star?