Physics ยท Science General

Astronomy and Cosmology

4,450 Questions

This topic provides questions on astronomy, cosmology, and the physical universe. It covers subjects like the Hubble sequence, constellations, dark matter, and stellar evolution. These questions help build a strong foundation for general science exam sections.

Galaxies and clustersConstellations and starsStellar evolutionSpace observatories

Astronomy and Cosmology Questions

Multiple choice

What is the name of the comet that was discovered in 2013 and became known for its extremely bright outburst?

  1. ISON Comet

  2. Lovejoy Comet

  3. McNaught Comet

  4. NEOWISE Comet
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

ISON Comet was discovered in 2013 and became known for its extremely bright outburst, which made it visible to the naked eye for several weeks.

Multiple choice

What is the name of the comet that was discovered in 2021 and became known for its extremely bright outburst?

  1. Leonard Comet

  2. NEOWISE Comet

  3. Lovejoy Comet

  4. McNaught Comet
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Leonard Comet was discovered in 2021 and became known for its extremely bright outburst, which made it visible to the naked eye for several weeks.

Multiple choice

What is the name of the star that is closest to Earth?

  1. Proxima Centauri

  2. Sirius

  3. Alpha Centauri

  4. Vega
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Proxima Centauri is a red dwarf star that is located about 4.2 light-years from Earth. It is the closest star to Earth, and it is part of the Alpha Centauri system.

Multiple choice

What is the name of the star that is at the center of our galaxy?

  1. Sagittarius A*

  2. Vega

  3. Sirius

  4. Proxima Centauri
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sagittarius A* is a supermassive black hole that is located at the center of our galaxy. It is about 4 million times the mass of the Sun.

Multiple choice

What is the name of the galaxy that is closest to our galaxy?

  1. Andromeda

  2. Triangulum

  3. M31

  4. M33
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Andromeda is the galaxy that is closest to our galaxy. It is a spiral galaxy that is about 2.5 million light-years away.

Multiple choice

What is the name of the largest galaxy in the universe?

  1. IC 1101

  2. UGC 2885

  3. NGC 6872

  4. IC 1011
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

IC 1101 is the largest galaxy in the universe. It is an elliptical galaxy that is about 6 million light-years across.

Multiple choice

What is the name of the oldest star in the universe?

  1. HD 140283

  2. HE 1523-0901

  3. Methuselah Star

  4. PSR J1119-0136
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

HD 140283 is the oldest star in the universe. It is a metal-poor star that is about 13.2 billion years old.

Multiple choice

Which constellation is known as the 'Hunter' and is often associated with the Greek myth of Orion?

  1. Ursa Major

  2. Taurus

  3. Orion

  4. Gemini
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Orion is a prominent constellation in the night sky, often recognized by its three stars that form Orion's Belt.

Multiple choice

What is the name of the brightest star in the constellation Canis Major?

  1. Polaris

  2. Sirius

  3. Vega

  4. Betelgeuse
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sirius, also known as the 'Dog Star', is the brightest star in the night sky and is located in the constellation Canis Major.

Multiple choice

Which constellation is known for its distinctive 'W' shape and is associated with the Greek myth of Cassiopeia?

  1. Ursa Minor

  2. Cassiopeia

  3. Cygnus

  4. Perseus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cassiopeia is a prominent constellation in the northern hemisphere, easily recognizable by its 'W' shape.

Multiple choice

What is the name of the constellation that contains the star Polaris, which is often used as a navigational aid?

  1. Ursa Major

  2. Ursa Minor

  3. Draco

  4. Cepheus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ursa Minor is a constellation in the northern hemisphere, known for containing Polaris, the North Star, which is used for navigation.

Multiple choice

Which constellation is associated with the Greek myth of the hero Perseus and is known for containing the star Algol?

  1. Andromeda

  2. Perseus

  3. Taurus

  4. Gemini
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Perseus is a constellation in the northern hemisphere, associated with the Greek myth of Perseus and containing the variable star Algol.

Multiple choice

What is the name of the constellation that contains the star Betelgeuse, which is a red supergiant and one of the largest stars known?

  1. Orion

  2. Taurus

  3. Gemini

  4. Canis Major
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Betelgeuse is a red supergiant star located in the constellation Orion.

Multiple choice

Which constellation is known for its distinctive 'M' shape and is associated with the Greek myth of Andromeda?

  1. Cassiopeia

  2. Andromeda

  3. Pisces

  4. Aquarius
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Andromeda is a constellation in the northern hemisphere, known for its 'M' shape and associated with the Greek myth of Andromeda.

Multiple choice

What is the name of the constellation that contains the star Vega, which is the fifth brightest star in the night sky?

  1. Aquila

  2. Lyra

  3. Cygnus

  4. Delphinus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vega is a bright star located in the constellation Lyra.