astronomers and stars

Question 1

Ptolemy

Answer 1

Claudius Ptolemy was a Roman mathematician, astronomer, astrologer, geographer, and music theorist

Question 2

Copernicus

Answer 2

Nicolaus Copernicus was a Renaissance polymath, active as a mathematician, astronomer, and Catholic canon,

Question 3

Brahe, Tycho

Answer 3

Tycho Brahe; born Tyge Ottesen Brahe; generally called Tycho was a Danish astronomer, known for his comprehensive and unprecedentedly accurate astronomical observations.

Question 4

Kepler, Johannes

Answer 4

Johannes Kepler was a German astronomer, mathematician, astrologer, natural philosopher and writer on music.

Question 5

Galileo

Answer 5

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

Question 6

issac newton

Answer 6

Isaac Newton (1642–1727) is best known for having invented the calculus in the mid to late 1660s

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.

Question 9

Ursa minor

Answer 9

Ursa Minor, also known as the Little Bear, is a constellation located in the far northern sky.

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.

Question 12

Cassiopeia

Answer 12

Cassiopeia

Question 13

red gaint

Answer 13

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

Question 14

White dwarf

Answer 14

A white dwarf is what stars like the Sun become after they have exhausted their nuclear fuel.

Question 15

Main-sequence star

Answer 15

A main sequence star is any star that has a hot, dense core which fuses hydrogen into helium to produce energy.

Question 16

supernova

Answer 16

A supernova is a powerful and luminous explosion of a star.

Question 17

Black hole

Answer 17

A black hole is a region of spacetime where gravity is so strong that nothing, including light or other electromagnetic waves, has enough energy to escape its event horizon.

Question 18

Parallax

Answer 18

the apparent displacement or the difference in apparent direction of an object as seen from two different points not on a straight line with the object.

Question 19

Light-year

Answer 19

Light-year is the distance light travels in one year.

Question 20

Polaris

Answer 20

Polaris or the North Star is a star that appears almost directly above the Earth’s rotational axis.