Missing Link: Maragha Observatory

Front

Who was the ancient astronomer who believed that the Earth was at the center of the Universe?

Back

Ptolemy

Front

What is the heliocentric model of the Universe?

Back

A model with the Sun at the center

Front

Which observatory played an important role in challenging the Earth-centered model of the Universe?

Back

The Maragha Observatory

Front

Which Arab astronomer pointed out contradictions in Ptolemy’s model in the tenth century?

Back

al-Haytham

Front

Why was astronomy important to Muslims during the Islamic Golden Age?

Back

It helped determine prayer times and dates for the lunar calendar

Front

Who was the great Persian astronomer who worked with Hulagu Khan to build the Maragha Observatory in Persia?

Back

Nasir al-Din al-Tusi

Front

What is the "Tusi couple"?

Back

A mathematical idea involving a small circle rotating within a larger one

Front

Which astronomer corrected Ptolemy’s calculations about distances between planetary bodies?

Back

Ibn al-Shatir

Front

What was a major contribution of the Maragha Observatory scholars to astronomy?

Back

They developed new models showing how planets move

Front

What is one reason historians debate the influence of Maragha Observatory scholars on Copernicus?

Back

Copernicus never mentioned al-Tusi or Ibn al-Shatir in his works