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Galaxy Distance

Description: This quiz will test your knowledge about the distances to galaxies and the methods used to measure them.
Number of Questions: 15
Created by:
Tags: astronomy galaxies galaxy distance
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What is the unit of distance commonly used to measure the distance to galaxies?

  1. Light-years

  2. Parsecs

  3. Astronomical Units

  4. Kilometers

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Correct Option: B
Explanation:

The parsec (pc) is a unit of distance commonly used in astronomy to measure the distance to galaxies. It is defined as the distance at which one parsec of parallax corresponds to one arcsecond.

What is the name of the method used to measure the distance to nearby galaxies?

  1. Parallax Method

  2. Redshift Method

  3. Tully-Fisher Relation

  4. Cepheid Variable Method

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Correct Option: A
Explanation:

The parallax method is used to measure the distance to nearby galaxies by measuring the apparent shift in their position as the Earth orbits the Sun. This method is only accurate for galaxies within a few hundred parsecs.

What is the name of the method used to measure the distance to distant galaxies?

  1. Parallax Method

  2. Redshift Method

  3. Tully-Fisher Relation

  4. Cepheid Variable Method

Show answer
Correct Option: B
Explanation:

The redshift method is used to measure the distance to distant galaxies by measuring the amount of redshift in their light. The redshift is caused by the expansion of the universe, and the farther away a galaxy is, the greater its redshift.

What is the Tully-Fisher Relation?

  1. A relation between the luminosity and rotation speed of a galaxy

  2. A relation between the distance and redshift of a galaxy

  3. A relation between the mass and size of a galaxy

  4. A relation between the age and metallicity of a galaxy

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Correct Option: A
Explanation:

The Tully-Fisher Relation is a relation between the luminosity and rotation speed of a galaxy. It is used to estimate the distance to galaxies by measuring their rotation speed and luminosity.

What is the Cepheid Variable Method?

  1. A method for measuring the distance to nearby galaxies

  2. A method for measuring the distance to distant galaxies

  3. A method for measuring the mass of a galaxy

  4. A method for measuring the age of a galaxy

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Correct Option: A
Explanation:

The Cepheid Variable Method is a method for measuring the distance to nearby galaxies by measuring the period and luminosity of Cepheid variable stars. Cepheid variable stars are pulsating stars with a well-defined period-luminosity relation.

What is the Hubble Constant?

  1. The rate at which the universe is expanding

  2. The distance to the nearest galaxy

  3. The mass of the Milky Way

  4. The age of the universe

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Correct Option: A
Explanation:

The Hubble Constant is the rate at which the universe is expanding. It is measured in kilometers per second per megaparsec.

What is the distance to the Andromeda Galaxy?

  1. 2.5 million light-years

  2. 25 million light-years

  3. 250 million light-years

  4. 2.5 billion light-years

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Correct Option: A
Explanation:

The Andromeda Galaxy is the closest major galaxy to the Milky Way. It is located about 2.5 million light-years away.

What is the distance to the Virgo Cluster?

  1. 10 million light-years

  2. 100 million light-years

  3. 1 billion light-years

  4. 10 billion light-years

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Correct Option: B
Explanation:

The Virgo Cluster is a large cluster of galaxies located about 100 million light-years away.

What is the distance to the Coma Cluster?

  1. 300 million light-years

  2. 3 billion light-years

  3. 30 billion light-years

  4. 300 billion light-years

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Correct Option: A
Explanation:

The Coma Cluster is a large cluster of galaxies located about 300 million light-years away.

What is the distance to the Great Wall?

  1. 1 billion light-years

  2. 10 billion light-years

  3. 100 billion light-years

  4. 1 trillion light-years

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Correct Option: A
Explanation:

The Great Wall is a large structure of galaxies located about 1 billion light-years away.

What is the distance to the Sloan Great Wall?

  1. 1.3 billion light-years

  2. 13 billion light-years

  3. 130 billion light-years

  4. 1.3 trillion light-years

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Correct Option: A
Explanation:

The Sloan Great Wall is a large structure of galaxies located about 1.3 billion light-years away.

What is the distance to the Hercules-Corona Borealis Great Wall?

  1. 10 billion light-years

  2. 100 billion light-years

  3. 1 trillion light-years

  4. 10 trillion light-years

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Correct Option: A
Explanation:

The Hercules-Corona Borealis Great Wall is a large structure of galaxies located about 10 billion light-years away.

What is the distance to the BOSS Great Wall?

  1. 4.5 billion light-years

  2. 45 billion light-years

  3. 450 billion light-years

  4. 4.5 trillion light-years

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Correct Option: A
Explanation:

The BOSS Great Wall is a large structure of galaxies located about 4.5 billion light-years away.

What is the distance to the Huge-LQG?

  1. 4 billion light-years

  2. 40 billion light-years

  3. 400 billion light-years

  4. 4 trillion light-years

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Correct Option: A
Explanation:

The Huge-LQG is a large structure of galaxies located about 4 billion light-years away.

What is the distance to the Giant Arc?

  1. 9.2 billion light-years

  2. 92 billion light-years

  3. 920 billion light-years

  4. 9.2 trillion light-years

Show answer
Correct Option: A
Explanation:

The Giant Arc is a large structure of galaxies located about 9.2 billion light-years away.

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