ptolemy

Question 1

Ptolemy

Answer 1

Ptolemy wrote in ancient Greek and can be shown to have utilized Babylonian astronomical data.

Question 2

Copernicus

Answer 2

Nicolaus Copernicus was a Renaissance polymath, active as a mathematician, astronomer, and Catholic canon, who formulated a model of the universe that placed the Sun rather than Earth at its center.

Question 3

Brahe, Tycho

Answer 3

Tycho Brahe was a Danish astronomer, known for his accurate and comprehensive astronomical observations.

Question 4

Johannes Kepler

Answer 4

Johannes Kepler was a German mathematician, astronomer, astrologer, and natural philosopher. He is a key figure in the 17th-century Scientific Revolution

Question 5

Galileo

Answer 5

Galileo di Vincenzo Bonaiuti de’ Galilei was an Italian astronomer, physicist and engineer, sometimes described as a polymath, from Pisa

Question 6

Newton, Isaac

Answer 6

Sir Isaac Newton PRS was an English mathematician, physicist, astronomer, theologian, and author who is widely recognised as one of the greatest mathematicians

Question 7

Hubble, Edwin

Answer 7

Edwin Powell Hubble was an American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology.

Question 8

Ursa major

Answer 8

Ursa Major is a constellation in the northern sky, whose associated mythology likely dates back into prehistory. Its Latin name means “greater she-bear,” referring to and contrasting it with nearby Ursa Minor, the lesser bear.

Question 9

Ursa minor

Answer 9

also called the Little Bear, in astronomy, a constellation of the northern sky, at about 15 hours right ascension and 80° north declination, and seven of whose stars outline the Little Dipper.

Question 10

Orion

Answer 10

Orion is a prominent constellation located on the celestial equator and visible throughout the world.

Question 11

Canis major

Answer 11

Canis Major is a 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 12

Cassiopeia

Answer 12

Cassiopeia is a constellation in the northern sky named after the vain queen Cassiopeia, mother of Andromeda, in Greek mythology, who boasted about her unrivaled beauty.

Question 13

Red giant

Answer 13

a very large star of high luminosity and low surface temperature.

Question 14

White dwarf

Answer 14

A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.

Question 15

Main-sequence star

Answer 15

In astronomy, the main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.

Question 16

Supernova

Answer 16

A supernova is a powerful and luminous stellar explosion.

Question 17

Black hole

Answer 17

A black hole is a region of spacetime where gravity is so strong that nothing

Question 18

Parallax

Answer 18

Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.

Question 19

Light-year

Answer 19

The light-year, alternatively spelled lightyear, is a unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers or 5.88 trillion miles. As defined by the International Astronomical Union, a light-year is the distance that light travels in vacuum in one Julian year.

Question 20

Polaris

Answer 20

Polaris is a star in the northern circumpolar constellation of Ursa Minor.