Astronomical Society of HCK | Knowledge Quiz

Why do you think we can't see many stars at night?

• Because of Light Pollution

• Because the stars are not bright enough

• Because there aren't many stars in the Universe at present

• Because our eyesight is not strong enough to view many stars at once

Answer explanation

Excessive and misdirected artificial light is known as Light Pollution.

Which planet is known as earth's twin?

• Neptune

• Super-Earth

• Venus

• Mars

Answer explanation

Venus is often called "Earth's Twin" because they're similar in size and structure.

In what unit is the distance in space measured?

• Kilometres

• Light Years

• Metres

• Miles

Answer explanation

A Light Year is a unit of astronomical distance equivalent to the distance that light travels in one year.

Who speculated that our universe is expanding?

• Isaac Newton

• Galileo Galilei

• Stephen Hawking

• Edwin Hubble

Answer explanation

American astronomer Edwin Hubble discovered in the 1920s that the Universe is expanding by showing that most galaxies are receding from the Milky Way. The farther away they are, the faster they are receding.

What is the star that is closest to Earth other than our Sun?

• Proxima Centauri

• Alpha Centauri A

• Sirius

• Ursa Major

What are Exoplanets?

• Any planet beyond our solar system

• Other planets in our Solar System except for Earth

• Inhabitable planets

• Planets bigger than Earth

Answer explanation

Click on these Links to know more about Exoplanets!

https://exoplanets.nasa.gov/

https://nineplanets.org/exoplanets/

What is the planet called the morning star or evening star? Why?

• Mars. Because Mars can be seen very brightly like a red star in the morning and evening.

• Venus. Because Venus can be seen very brightly like a star in the morning and evening.

• Mercury. Because Mercury reflects the light emitted by the sun and we can see it as a bright star.

• None of the Above

Why do you think Pluto is a Dwarf Planet?

• Because it has not cleared the neighbourhood around its orbit.

• Because it did not meet the three criteria the IAU uses to define a full-sized planet.

Answer explanation

Pluto was named a Dwarf Planet in 2006.

What type of telescope do you think can work 24 hours a day and even be used in the rain?

• Space Telescopes

• Optical Telescopes

• Telescopes used in Observatories

• Radio Telescopes

Answer explanation

Radio telescopes observe Radio astronomy has the advantage that sunlight, clouds, and rain do not affect observations. Because radio is of lower energy than visible light, radio waves can reflect off of non-reflective surfaces.

Why do you think Astronomy is important?

• By studying the cosmos beyond our planet, we can have a better understanding of where we came from, where we are going, and how physics works.

• Astronomy is important because it helped us measure time, mark the seasons, and navigate the vast oceans in the past.