Astronomy

Question 1

Ptolemy

Answer 1

Came up with that earth was in the center of the solar system

Question 2

Copernicus

Answer 2

He proposed that the sun is the center of the universe

Question 3

Tycho Brahe

Answer 3

known for his accurate and comprehensive astronomical and planetary observations. He was born in the then Danish peninsula of Scania.

Question 4

kepler johannes

Answer 4

known for his laws of planetary motion, based on his works Astronomia nova, Harmonices Mundi, and Epitome of Copernican Astronomy

Question 5

Galileo

Answer 5

He is known for telescopes

Question 6

Isaac Newton

Answer 6

Newton developed the three laws of motion which form the basic principles of modern physics. His discovery of calculus led the way to more powerful methods of solving mathematical problems.

Question 7

Edwin Hubble

Answer 7

played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology and is regarded as one of the most important astronomers of all time

Question 8

Ursa Major

Answer 8

constellation in the northern sky, whose associated mythology likely dates back into prehistory. Its Latin name means “greater she-bear”

Question 9

Orion

Answer 9

prominent constellation located on the celestial equator and visible throughout the world

Question 10

Ursa Minor

Answer 10

Ursa Minor, also known as the Little Bear, is a constellation in the Northern Sky

Question 11

Cassiopeia

Answer 11

constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty.

Question 12

Red Giant

Answer 12

A red giant is a luminous giant star of low or intermediate mass in a late phase of stellar evolution

Question 13

Canis Major

Answer 13

constellation in the southern celestial hemisphere. In the second century, it was included in Ptolemy’s 48 constellations, and is counted among the 88 modern constellations

Question 14

White Dwarf

Answer 14

a small very dense star that is typically the size of a planet

Question 15

Main sequence star

Answer 15

continuous and distinctive band of stars that appear on plots of stellar color versus brightness

Question 16

Supernova

Answer 16

a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.

Question 17

Black hole

Answer 17

region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it

Question 18

Parallex

Answer 18

Parallax is the apparent displacement of an object because of a change in the observer’s point of view

Question 19

Light year

Answer 19

a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 trillion miles

Question 20

Polaris

Answer 20

commonly the North Star or Pole Star, is the brightest star in the constellation of Ursa Minor.