We leave you 100 astronomy questions so that you can test your knowledge about galaxies, stars, satellites, stars and everything that takes place in the gigantic Universe.
This quiz is designed both to play individually and with friends, with whom you can compete and find out who is the most knowledgeable in astronomical matters. The tests include questions with images.
Image by Free-Photos from Pixabay
List of astronomy questions to test your knowledge
What is the closest solar system to our sun?
Answer
Alpha Centauri, about 4.37 light years away.
What kind of star is our Sun?
Answer
A yellow dwarf star or G-type star.
What term do astronomers use to describe the two times a year when the day and night are the same length??
Answer
Equinox.
What is the brightest star in the constellation Ursa Minor?
Answer
The Pole Star.
Which planet has the coldest atmosphere in the solar system?
Answer
Neptune, averaging minus 200 degrees Celsius.
What are planets that orbit a star other than the sun called??
Answer
Exoplanets.
What is shown in the picture?
Image by 1980supra from Pixabay
Answer
A comet.
What is this equation called?
Answer
The Drake equation, which is used to estimate the number of civilizations in our galaxy.
What two motions do all the planets have?
Answer
Rotation and translation.
What is the largest known galaxy?
Answer
IC 1101, about 2 million light years from its center.
What is illustrated in the picture?
From Justin Cowart - Ceres - RC3 - Haulani Crater, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=49700255
Answer
An asteroid, specifically the asteroid Ceres, itself considered a dwarf planet.
What is the closest galaxy to planet Earth?
Answer
The Andromeda Galaxy.
What are the gas and dust clouds between the stars called?
Answer
Nebulae.
How many constellations are officially recognized?
Answer
There are 88 constellations, all of them different and with different names..
What is the name of this planet belonging to the Solar System?
Image by WikiImages from Pixabay
Answer
Saturn.
What is the spherical surface that surrounds a black hole called?
Answer
Event horizon.
Which planet in the solar system absorbs space junk?
Answer
Jupiter, due to its intense magnetic field.
Which planet in the solar system has a year shorter than its day?
Answer
Venus. One year on Venus equals 225 days on earth, while one day equals 243.
What kind of star is Proxima Centauri, the closest star to the sun?
Answer
It's a red dwarf.
What is the name of this famous telescope?
Image by Ondřej Šponiar from Pixabay
Answer
Hubble Space Telescope.
What kind of matter does not emit or reflect enough radiation to be observed?
Answer
Dark matter.
What three classifications do galaxies receive according to their shape??
Answer
They can be classified into lenticular, elliptical and spiral.
Is the Moon moving away from the Earth?
Answer
Yes, it moves away at the speed of 4 cm / year.
The Moon's period of rotation coincides with its period of translation. True or false?
Answer
True, that's why we always see the same face of the moon.
Who invented the telescope?
Answer
German lens manufacturer Hans Lippershey.
What is the hottest planet in the solar system?
Answer
Venus, with about 462 degrees Celsius.
Who is this famous astronomer?
Image by skeeze from Pixabay
Answer
American Carl Sagan.
What is the name of this galaxy to which the Solar System belongs?
Answer
Milky Way.
How are gas spheres compressed by the force of gravity known??
Answer
They are known as Stars.
What are the two most common chemical elements in stars?
Answer
Hydrogen and Helium.
What is the visible part of the Sun called?
Answer
Photosphere.
What is the name of the set formed by a star and planets orbiting around it??
Answer
Planetary system.
What is called the concealment of one star by another, seen from a third?
Answer
Eclipse.
What is the name of the set of stars, planets, clouds of gas and matter united gravitationally in a defined structure??
Answer
Galaxy.
What natural satellite is this?
Image by Ponciano from Pixabay
Answer
Moon.
What is the smallest planet in the solar system?
Answer
Mercury.
What are the constellations found at the poles called?
Answer
Circumpolar constellations.
Can a comet create a crater on the surface of the earth?
Answer
No, comets tend to disintegrate in Earth's atmosphere.
Do the stars remain unchanged all their life?
Answer
No, every star has a cycle of birth, evolution and death.
What are the stars called that vary their temperature and brightness regularly??
Answer
Cepheid variable stars.
What is generated when a star exhausts its nuclear fuel?
Answer
A white dwarf.
What is illustrated in the picture?
Image by ky choi from Pixabay
Answer
A shower of stars.
The lunar eclipse occurs when the moon comes between the Earth and the Sun. True or false??
Answer
False, occurs when the Earth comes between the Moon and the sun.
What are the groupings of stars that are born from the same molecular cloud called?
Answer
Star clusters.
How many years is the solar cycle, related to sunspots?
Answer
Lasts 11 years.
How do you know stellar explosions in which huge amounts of energy are released??
Answer
They are known as Novas, Supernovae and, theoretically, Hypernova.
What space objects can create craters on the surface of planet Earth?
Answer
Meteorites, because they do not completely disintegrate in the atmosphere.
What is the brightest star in the constellation Scorpio?
Answer
Antares, which is also the 16th brightest in the night sky.
The fate of a white dwarf is to gradually warm up. True or false?
Answer
False, white dwarfs are stars that cool to death.
What is illustrated in the picture?
From Portscan - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=7348047
Answer
A star cluster.
What holds galaxies together in galaxy clusters?
Answer
The gravitational attraction they exert on each other.
What is the name of the central group of stars found in most spiral galaxies?
Answer
Galactic Bulb.
The Milky Way has about 100 trillion stars. True or false?
Answer
False, owns more than 200 billion.
What properties are taken to calculate the age of a star?
Answer
Its luminosity and its temperature.
What is the most popular and recognized star cluster?
Answer
The Pleiades, also known as The Seven Sisters. It is a star cluster located in the constellation of Taurus.
What is the outermost part of a galaxy called?
Answer
It is called Halo, in it there is a low concentration of stars.
What are the Tears of Saint Lawrence?
Answer
A meteor shower, also called Perseids.
What is this planet called?
Image by WikiImages from Pixabay
Answer
Venus, the second planet in the solar system.
The space station is not visible from Earth. True or false?
Answer
False, it is visible at certain times, depending on the place.
Which satellite of Saturn is believed to be viable for human life?
Answer
Titan, its largest satellite.
What is the hottest planet known so far?
Answer
WASP-12b, discovered in 2008 about 870 light years away.
What happens when a white dwarf explodes?
Answer
A nova is produced.
What nebula is popularly called "Eye of God"?
Answer
The Helix Nebula, found in the constellation Aquarius.
What is the name of the region of the Solar System between Mars and Jupiter??
Answer
Asteroid belt.
Stars are formed from pulverized asteroids and hot planets. True or false?
Answer
False, they are formed from interstellar gas and dust clouds.
What is represented in the picture?
Image by WikiImages from Pixabay
Answer
A supernova, very bright stellar explosion.
What is Cygnus X-1?
Answer
A black hole located in the constellation of the Swan.
What does a Astronomical Unit (UA)?
Answer
At the distance between the Earth and the Sun.
Which star system gets its name from a well-known universal writer?
Answer
The Cervantes System, located in the constellation Altar.
What is the largest star known to man?
Answer
The star UY Scuti, located in the constellation of the Shield.
What astronomical objects distort space-time and put special relativity into effect?
Answer
Black holes.
What are the smallest bodies orbiting the Sun in the solar system?
Answer
Comets.
What branch of astronomy studies the celestial bodies through their emissions and absorptions of radio waves?
Answer
Radio astronomy, whose study is carried out with large radio antennas.
What is this planet belonging to the Solar System called?
Image by flflflflfl from Pixabay
Answer
Jupiter.
What is the brightest object in the universe so far known?
Answer
The quasar, a very intense energy source .
Which two planets in the solar system rotate in opposite directions relative to each other??
Answer
Venus and Uranus, rotating clockwise.
What is the outer layer of the gaseous envelope of the sun called?
Answer
It is called the chromosphere, it is red in color and consists mainly of hydrogen..
What are the failed stars called?
Answer
They are called brown dwarfs, and they have both planetary and stellar characteristics..
The outermost part of the solar system is supposed to be populated by a large spherical cloud of objects. What is the name of this cloud?
Answer
Oort cloud, and it is a source of comets.
What physical magnitude does the light year measure, widely used in astronomy?
Answer
It measures distance, and because it represents great lengths it helps to measure cosmic distances.
What is the name of this satellite of Jupiter?
From NASA / JPL / DLR - Ganymede's Trailing Hemisphere, Public Domain, https://commons.wikimedia.org/w/index.php?curid=1020305
Answer
It is called Ganymede, and it is the largest of Jupiter.
What are the small particles that orbit around the sun called?
Answer
Meteoroids.
Based on its shape, what kind of galaxy is shown in the image??
Answer
An elliptical galaxy.
What is the name of the region between the stars?
Answer
It's called interstellar space.
Sunlight takes around 4-5 hours to reach Neptune, the planet furthest from the sun. True or false?
Answer
True.
In which arm of our galaxy is our solar system??
Answer
In the so-called Arm of Orion.
The farthest object observable with the naked eye is the planet Saturn. True or false?
Answer
False, it is the Andromeda galaxy, 2 million light years away.
What is the name of the set of galaxies in which the Milky Way is located??
Answer
It's called Local Group.
What solar phenomenon do the black dots represent?
Answer
Sunspots, regions of the sun with lower temperatures than its surroundings.
What is the best season of the year to see the constellation Orion?
Answer
Winter.
What is shown in the picture?
Image by WikiImages from Pixabay
Answer
The international space station.
What kinds of nebulae are commonly blue?
Answer
Reflection nebulae as they reflect light.
Are shooting stars really stars?
Answer
No, the term refers to the luminous phenomenon that occurs when a meteoroid passes through our atmosphere.
What is the brightest star in the night sky seen from Earth?
Answer
The star Sirius, located in the constellation of the southern celestial Hemisphere Canis Maior.
The collapse of the core of a star at the end of its life approximately how long?
Answer
Lasts about a second.
What is the furthest space probe from Earth?
Answer
The Voyager 1 probe is located almost 21,000 million km from Earth.
What was the largest comet detected from Earth?
Answer
Comet McNaught, discovered in 2006.
Neutron stars have a strong magnetic field. True or false?
Answer
True.
What is the name of this famous photo taken of the Eagle Nebula?
Image by WikiImages from Pixabay
Answer
It's called The Pillars of Creation, and it was taken by the Hubble telescope.
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