Famous Greek Astronomers

Vote for Your Favourite Greek Astronomers

Right IconThis ranking is based on an algorithm that combines various factors, including the votes of our users and search trends on the internet.

 1 
Eratosthenes
(First Person to Calculate the Circumference of the Earth and Earth's Axial Tilt)
Eratosthenes
9
Birthdate: 0276 BC
Birthplace: Cyrene, Libya, Shahat, Libya
Died: 0194 BC

Greek polymath Eratosthenes of Cyrene was a mathematician, poet, geographer, music theorist, and astronomer. He also served as the Library of Alexandria’s chief librarian. He was also the first to calculate the Earth’s circumference and the tilt of the Earth's axis. Nicknamed Pentathlos, he also invented many scientific terms.

 2 
Thales
(Philosopher)
Thales
5
Birthdate: 0624 BC
Birthplace: Miletus Ancient Theater, Turkey
Died: 0546 BC

One of the Seven Wise Men of Greece, Thales was a 6th-century mathematician who believed that the Earth was a flat disk floating on a huge ocean. Legend has it that he had predicted a solar eclipse that stopped a major battle and had also laid down several geometrical theorems.

 3 
Hipparchus
(Astronomer & Mathematician)
Hipparchus
8
Birthdate: 0190 BC
Birthplace: Nicaea, Kingdom of Bithynia
Died: 0120 BC
In his early years in Bithynia, Hipparchus spent most of his time compiling weather records. He devoted almost his entire life to astronomical research. Remembered as the man who founded trigonometry, he also discovered the precession of the equinoxes. However, most of his written work hasn’t survived.
Recommended Lists:
 4 
Aristarchus of Samos
(Greek Astronomer and Mathematician Who Presented the First Known Heliocentric Model)
Aristarchus of Samos
5
Birthdate: 0310 AD
Birthplace: Samos, Greece
Died: 0230 AD

Aristarchus of Samos was an ancient Greek mathematician and astronomer best known for being the first person to present the heliocentric model at a time when the geocentric theories of Ptolemy and Aristotle were considered conventional. Aristarchus of Samos even estimated the sizes of the Moon and Sun and is regarded as one of the greatest thinkers of all time.

 5 
Posidonius
(Greek Astronomer, Mathematician, Geographer and Philosopher)
Posidonius
3
Birthdate: 0135 BC
Birthplace: Apamea, Syria
Died: 0051 BC

Posidonius was a Greek astronomer, astrologer, politician, historian, mathematician, geographer, and teacher. Widely regarded as the most learned man of his generation, Posidonius took genuine interest in natural history and natural science. He worked towards spreading Stoicism to the Roman world through his personal lectures and writings. Also a philosopher, Posidonius’ works have influenced the works of several subsequent writers.     

 6 
Archytas
(Greek Philosopher, Mathematician and Astronomer)
Archytas
3
Birthdate: 0428 AD
Birthplace: Taranto, Italy
Died: 0347 AD

Archytas was an Ancient Greek astronomer, mathematician, philosopher, strategist, statesman, and music theorist. One of the most important and popular scientists of the Pythagorean school, Archytas is famous for founding mathematical mechanics. Also remembered as a dear friend of Plato, Archytas is also credited by Aulus Gellius with building the first self-propelled flying device which supposedly flew some 200 meters.

 7 
Berossus
(Greek Astronomer and Priest)
Berossus
3
Birthplace: Babylon

Berossus was a Babylonian writer, astronomer, and a priest of Bel Marduk. Berossus, who wrote in the Koine Greek language prevalent during the Hellenistic period, is claimed to have invented the semi-circular sundial by popular Roman architect and engineer Vitruvius.

 8 
Theon of Alexandria
(Mathematician)
Theon of Alexandria
3
Birthdate: 0335 AD
Birthplace: Roman Empire
Died: 0405 AD

Theon of Alexandria was a Greek mathematician and scholar. He is credited with editing and arranging Euclid's prominent work Elements. He also wrote commentaries on works by Ptolemy and Euclid. Theon of Alexandria's daughter Hypatia also went on to become a famed mathematician.

 9 
Heraclides Ponticus
(Philosopher)
Heraclides Ponticus
3
Birthdate: 0390 AD
Birthplace: Ere─čli, Turkey
Died: 0310 AD

Greek philosopher and astronomer Heraclides Ponticus was the first to suggest the phenomenon of the rotation of the Earth, a concept that didn’t become a part of mainstream astronomy until after 1,800 years. Only fragments of his original writings have survived. He studied under Plato, and managed his academy in his absence.

 10 
Hippocrates of Chios
(Mathematician)
Hippocrates of Chios
2
Birthdate: 0470 AD
Birthplace: Chios, Greece
Died: 0410 AD

Greek mathematician Hippocrates of Chios revolutionized geometry and inspired Euclid’s Elements. Initially a merchant, he was looted by pirates. Unsuccessful in bringing them to justice in Athens, he started studying math. He was the first to author a systematic textbook of geometry. He is also known for his work on astronomy.

 11 
Menelaus of Alexandria
(Mathematician)
Menelaus of Alexandria
2
Birthdate: 0070 AD
Birthplace: Alexandria, Egypt
Died: 0140 AD

Menelaus of Alexandria was a Greek astronomer and mathematician. Sphaerica, his only book to have survived in the form of an Arabic translation, deals with the geometry of the sphere and introduces the concept of spherical triangle. The Arabic version of the book was translated again by Francesco Maurolico, a 16th century mathematician and astronomer.

 12 
Conon of Samos
(Astronomer)
Conon of Samos
2
Birthdate: 0280 AD
Birthplace: Samos, Greece
Died: 0220 AD

Conon of Samos was a Greek mathematician and astronomer best known for naming the constellation Coma Berenices. As a mathematician, Pappus credits Conon of Samos with the discovery of the spiral of Archimedes. Conon is also remembered for his friendship with the popular mathematician, Archimedes. 

 13 
Ammonius Hermiae
(Greek Philosopher, Astronomer and Mathematician)
Ammonius Hermiae
2
Birthdate: 0435 AD
Birthplace: Alexandria, Egypt
Died: 0517 AD

Ammonius Hermiae was a Greek philosopher and lecturer best remembered for delivering lectures on the works of imminent personalities like Aristotle, Plato, and Porphyry of Tyre. He also wrote commentaries on Platonic and Aristotelian works. Ammonius Hermiae is also credited with teaching several Neoplatonists like Olympiodorus of Thebes, Damascius, Simplicius of Cilicia, John Philoponus, and Asclepius of Tralles.

 14 
Michael Glycas
(Historian)
Michael Glycas
0
Birthdate: 1125 AD
Birthplace: Corfu, Greece
Died: 1204 AD

Byzantine theologian and historian Michael Glycas was from the Greek island of Corfu. Accused of conspiring against emperor Manuel I Komnenos, he was partially blinded and imprisoned but continued to write even while in prison. Verses from Prison and his chronicle remain his best-known works.