Do this quiz to see how much you know about astronomy or to learn more about our wonderful science. Credit: Pixabay/Wikimedia Commons
Takeaway Keyway:
- The universe has about 13.8 billion years.
- Venus is the hottest planet due to a greenhouse effect on the run.
- Elliptical galaxies are the most common type.
- The stars produce energy through nuclear fusion.
You have set up your telescope and you are showing some of the wonders in the sky. Of course, they will ask you questions. Here are some that you could be asked. How many do you know the answers?
Question 1: About how old is the universe?
Question 2: Which planet in our sun system has the hottest surface temperature and what cause it?
Question 3: What is the most common type of galaxy in the universe?
Question 4: What is the name of the supermassive black hole in the center of the Milky Way?
Question 5: Which celestial object is sometimes called “failed star” because it is not huge enough to support nuclear fusion?
Question 6: What phenomenon causes the sparkling (sparkling) of the stars if seen by the earth?
Question 7: What is a light year and about how many miles (or kilometers) does it represent?
Question 8: What two planets in our sun system have no natural satellites (moons)?
Question 9: What is the name of the largest volcano of the Solar System and on which planet is it found?
Question 10: What is a supernova?
Question 11: What is the name of the star closest to the earth, excluding the sun?
Question 12: What is the term for the alignment of three celestial bodies in a gravitational system, such as the sun, the moon and the earth during an eclipse?
Question 13: What are the main components that make up a comet?
Question 14: What is the Kuiper belt and where is it?
Question 15: What planet in the sun system is known for its important ring system, composed mainly of ice particles?
Question 16: What is the name of the theory that describes the origin and evolution of the universe from a hot and dense state initial state?
Question 17: What is the difference between a meteoroid, a meteor and a meteorite?
Question 18: What is retrograde movement, as observed for some planets from the earth?
Question 19: Which element was discovered for the first time in the spectrum of the sun before being found on earth?
Question 20: What is the name of the outermost region of our Solar System, a theoretical cloud of frozen planetesimals, considered the source of the long -term comets?
Question 21: What is the Goldocks area in astronomy?
Question 22: What are the two primary elements that make up the vast majority of the mass of our sun?
Question 23: What is the celestial sphere?
Question 24: What astronomical phenomenon is caused by particles charged by the sun that interact with the magnetic field and the atmosphere of the earth, producing lights in the sky?
Question 25: What is the process through which the stars generate energy in their nuclei?
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Answer 1: The current scientific estimates position the age of the universe to about 13.8 billion years, mainly determined by the expansion rate observed in the cosmic microwave background radiation.
Answer 2: Venus is the hottest planet, with surface temperatures of about 863 degrees Fahrenheit (462 degrees Celsius). This is due to a greenhouse effect caused by its thick atmosphere of carbon dioxide.
Answer 3: Elliptical galaxies are the most common type, characterized by their smooth and without characters and by an older population of stars.
Answer 4: The supermassive black hole in the center of the Milky Way is known as Sagittarius A* (pronounced “Sagittarius A-Star”).
Answer 5: A brown dwarf is a celestial object with a mass between that of a large planet and a small star. Its mass is insufficient to support the fusion of hydrogen in its nucleus.
Answer 6: Stellar glitter is caused by turbulence in the terrestrial atmosphere, which reflects and distorts the light of the star while it passes through different layers of air, making the star looks for shiny.
Answer 7: A light year may seem like a unit of time, but it is a unit of distance. It is the distance light travels in one year in the void. There are about 5.88 trillion of miles (9.46 trillion of kilometers).
Answer 8: Mercury and Venus are the only two planets in our sun system that do not have natural satellites.
Answer 9: Olympus Mons is the largest volcano of the Solar System. This huge shield volcano is located on Mars. It is located almost three times higher than Monte Everest.
Answer 10: A supernova is a powerful and brilliant stellar explosion. It can occur or when a massive star reaches the end of his life or when a white dwarf star in a binary system accumulates enough matter to undergo a thermonuclear explosion on the run.
Answer 11: Proxima Centauri is the star closest to the earth that is not the sun. It is part of the Tripha Alpha Centauri Tripha system, located about 4.2 light years away.
Answer 12: The term for the alignment of three celestial bodies in a gravitational system is Syzygy. This alignment takes place on earth, during solar or lunar eclipses and also on other planets with moons.
Answer 13: The comets are mainly composed of ice, dust and rock material. They are often described as “dirty snowballs”.
Answer 14: The Kuiper belt is a vast region of frozen bodies and dwarf planets located beyond the orbit of Neptune. It is a source of short -term comets.
Answer 15: Saturn is renowned for its large and complex ring system, which is largely composed of billions of small ice particles and rocky debris.
Answer 16: The Big Bang theory is the prevalent cosmological model that explains the origin of the universe and the large -scale evolution from an extremely warm and dense initial state.
Answer 17: A meteoroid is a small rocky or metallic body in space. A meteor is the series of light produced when a meteoroid enters the Earth’s atmosphere. A meteorite is a meteoroid that survives passing through the atmosphere and affects the earth’s surface.
Answer 18: The retrograde movement is the apparent movement backwards (from east to the west) of a planet in the night sky compared to the background stars. It is an optical illusion caused by the orbital movement of the earth.
Answer 19: The helium was detected for the first time in the spectrum of the sun during an eclipse in 1868, identified by its unique spectral lines. He was later discovered on earth in 1895.
Answer 20: The Oort cloud is a hypothetical spherical cloud of frozen planetesimals, which is believed to be located to the most external rays of the Solar System, acting as a long -term comet source.
Answer 21: The Goldilocks area, or area area, is the region around a star in which the conditions, in particular the temperature, are suitable for liquid water to exist on the surface of a planet. Scientists consider that essential substance for life as we know it.
Answer 22: The sun is mainly composed of hydrogen (about 75 percent of its mass) and helium (about 24 percent of its mass), with traces of other elements.
Answer 23: The celestial sphere is an imaginary sphere surrounding the earth, on which all celestial objects seem to be identified. It is a conceptual tool useful for understanding and mapping the positions of stars and planets.
Answer 24: Le Aurorae (the northern aurora in the northern hemisphere and the Aurora Australis in the southern hemisphere) are caused by energy particles of the solar wind that clash with atoms in the atoms of the upper earth, which excites them to emit light.
Answer 25: The stars generate energy through nuclear fusion in their nuclei. For most of their life, hydrogen atoms in helium merge, releasing immense quantities of energy. This process occurs to our sun.
