Astronomy and Stars

Question 1

Ptolemy

Answer 1

Claudius Ptolemy was a Greco-Roman mathematician, astronomer

Question 2

Copernicus

Answer 2

Nicolaus Copernicus was a Renaissance-era mathematician and astronomer who formulated a model of the universe

Question 3

Brahe, Tycho

Answer 3

Tycho Brahe was a Danish nobleman, astronomer, and writer known for his accurate and comprehensive astronomical

Question 4

Kepler, Johannes

Answer 4

Johannes Kepler was a German mathematician, astronomer, and astrologer

Question 5

Galileo

Answer 5

Galileo Galilei was an Italian polymath. Galileo is a central figure in the transition from natural philosophy

Question 6

Newton, Isaac

Answer 6

Sir Isaac Newton PRS was an English mathematician, astronomer, theologia

Question 7

Ursa major

Answer 7

Ursa Major is a constellation in the northern sky, whose associated mythology likely dates back

Question 8

Ursa minor

Answer 8

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

Question 9

Canis major

Answer 9

Canis Major is a constellation in the southern celestial hemisphere. In the second century

Question 10

Red giant

Answer 10

a very large star of high luminosity

Question 11

White dwarf

Answer 11

also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate

Question 12

Main-sequence star

Answer 12

Main sequence stars fuse hydrogen atoms to form helium atoms in their cores. About 90 percent of the stars in the universe

Question 13

Supernova

Answer 13

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

Question 14

Black hole

Answer 14

a region of space having a gravitational field so intense that no matter or radiation can escape.

Question 15

Parallax

Answer 15

he effect whereby the position or direction of an object appears to differ when viewed from different positions,

Question 16

Light-year

Answer 16

a long distance or great amount.

Question 17

Polaris

Answer 17

a space in the sky or galaxy

Question 18

Hubble, Edwin

Answer 18

is regarded as one of the most important astronomers of all time.

Question 19

Orion

Answer 19

prominent constellation located on the celestial equator

Question 20

Cassiopeia

Answer 20

Constellation in the northern sky