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(1786-1853) French astronomer and physicist.

Dominique François Arago

(1786-1853) French astronomer and physicist.

(1736-1793) French astronomer and statesman.

Jean Sylvain Bailly

(1736-1793) French astronomer and statesman.

(1736-1793) French astronomer and politician.

Jean Sylvain Bailly

(1736-1793) French astronomer and politician.

(1744-1807) A famous Swiss mathematician and astronomer.

John Bernouilli

(1744-1807) A famous Swiss mathematician and astronomer.

Astronomer

Tycho Brache

Astronomer

(1546-1601) Danish nobleman best known as an early astronomer, though in his lifetime he was also well known as an astrologer and alchemist.

Tycho Brahe

(1546-1601) Danish nobleman best known as an early astronomer, though in his lifetime he was also well…

Tycho Brahe, born Tyge Ottesen Brahe (December 14, 1546 - October 24, 1601), was a Danish nobleman famed for his accurate and comprehensive astronomical and planetary observations. Hailing from Scania, then part of Denmark, now part of modern-day Sweden, Brahe was well known in his lifetime as an astronomer and alchemist.

Tycho Brahe

Tycho Brahe, born Tyge Ottesen Brahe (December 14, 1546 - October 24, 1601), was a Danish nobleman famed…

Astronomer

Copernicus

Astronomer

(1473-1543) First astronomer of the Renaissance.

Nicolaus Copernicus

(1473-1543) First astronomer of the Renaissance.

Nicolaus Copernicus (February 19, 1473 - May 24, 1543) was the first astronomer to formulate a scientifically based heliocentric cosmology that displaced the Earth from the center of the universe. His epochal book, <em>De revolutionibus orbium coelestium</em> (On the Revolutions of the Celestial Spheres), is often regarded as the starting point of modern astronomy and the defining epiphany that began the Scientific Revolution.

Nicolaus Copernicus

Nicolaus Copernicus (February 19, 1473 - May 24, 1543) was the first astronomer to formulate a scientifically…

(1842--) French astronomer

Camille Flammarion

(1842--) French astronomer

(1564-1642) Italian physicist, mathematician, astronomer, and philosopher who was one of the great creators of experimental science.

Galileo Galilei

(1564-1642) Italian physicist, mathematician, astronomer, and philosopher who was one of the great creators…

Galileo Galilei (15 February 1564 - 8 January 1642) was a Tuscan (Italian) physicist, mathematician, astronomer, and philosopher who played a major role in the scientific revolution. His achievements include improvements to the telescope and consequent astronomical observations, and support for Copernicanism. Galileo has been called the "father of modern observational astronomy," the "father of modern physics," the "father of science," and "the Father of Modern Science." The motion of uniformly accelerated objects, taught in nearly all high school and introductory college physics courses, was studied by Galileo as the subject of kinematics. His contributions to observational astronomy include the telescopic confirmation of the phases of Venus, the discovery of the four largest satellites of Jupiter, named the Galilean moons in his honor, and the observation and analysis of sunspots. Galileo also worked in applied science and technology, improving compass design.

Galileo Galilei

Galileo Galilei (15 February 1564 - 8 January 1642) was a Tuscan (Italian) physicist, mathematician,…

Astronomer

Galileo

Astronomer

Benjamin Apthorp Gould (September 27, 1824 - November 26, 1896) was a pioneering American astronomer. He is notable for creating the <em>Astronomical Journal</em> and discovering the Gould Belt.

Benjamin A. Gould

Benjamin Apthorp Gould (September 27, 1824 - November 26, 1896) was a pioneering American astronomer.…

(1750-1848) German astronomer who worked in England from 1772 to 1822.

Caroline Lucretia Herschel

(1750-1848) German astronomer who worked in England from 1772 to 1822.

Sir William Herschel, famous English astronomer

Sir William Herschel

Sir William Herschel, famous English astronomer

(1738-1822) German astronomer who discovered the planet Uranus in 1781 and was appointed astronomer to King George III of England. He was knighted in 1816.

Sir William (Frederick) Herschel

(1738-1822) German astronomer who discovered the planet Uranus in 1781 and was appointed astronomer…

Astronomer

Kepler

Astronomer

A key figure in the scientific revoluion, a German astrologer, astronomer, and mathematician of famed brilliance. He is best known for his laws of planetary motion.

Johann Kepler

A key figure in the scientific revoluion, a German astrologer, astronomer, and mathematician of famed…

Johannes Kepler (1571-1630) was a German mathematician, astronomer, and astrologer. A key figure in the 17th century scientific revolution, he is best known for his laws of planetary motion, based on his works Astronomia nova, Harmonices Mundi, and Epitome of Copernican Astronomy. These works also provided one of the foundations for Isaac Newton's theory of universal gravitation.

Johannes Kepler

Johannes Kepler (1571-1630) was a German mathematician, astronomer, and astrologer. A key figure in…

Johannes Kepler (December 27, 1571 - November 15, 1630) was a German mathematician, astronomer and astrologer, and key figure in the 17th century astronomical revolution. He is best known for his eponymous laws of planetary motion, codified by later astronomers based on his works Astronomia nova, Harmonices Mundi, and Epitome of Copernican Astronomy. They also provided one of the foundations for Isaac Newton's theory of universal gravitation.

Johannes Kepler

Johannes Kepler (December 27, 1571 - November 15, 1630) was a German mathematician, astronomer and astrologer,…

(1768-1835) He was an astrologer who was killed because people believed he had dealings with demons

John Lamb

(1768-1835) He was an astrologer who was killed because people believed he had dealings with demons

Ormbsy MacKnight (or McKnight) Mitchel (July 20, 1805 &ndash; October 30, 1862) was an American astronomer and major general in the American Civil War.

Ormsby McKnight Mitchel

Ormbsy MacKnight (or McKnight) Mitchel (July 20, 1805 – October 30, 1862) was an American astronomer…

(1835-1909) American astronomer and mathematician.

Simon Newcomb

(1835-1909) American astronomer and mathematician.

Simon Newcomb (March 12, 1835 &ndash; July 11, 1909) was a Canadian-American astronomer and mathematician.

Simon Newcomb

Simon Newcomb (March 12, 1835 – July 11, 1909) was a Canadian-American astronomer and mathematician.

Famous astronomer and mathematician.

Professor R. A. Proctor

Famous astronomer and mathematician.

(1837-1888) English astronomer

Richard A. Proctor

(1837-1888) English astronomer

Claudius Ptolemaeus, known as Ptolemy, was an ancient geographer, astrologer, and astronomer.

Ptolemy (Claudius Ptolemaeus)

Claudius Ptolemaeus, known as Ptolemy, was an ancient geographer, astrologer, and astronomer.

Claudius Ptolemaeus, known as Ptolemy, was an ancient geographer, astrologer, and astronomer.

Ptolemy Holding a Document

Claudius Ptolemaeus, known as Ptolemy, was an ancient geographer, astrologer, and astronomer.

He was a mathematician, geographer, astronomer, and astrologer. "The name of a line Graeco-Egyptain kings, who succeeded on the division of the empire of Alexander the Great, to the portion of his dominions of which Egypt was the head." -Marshall

Ptolemy in Profile

He was a mathematician, geographer, astronomer, and astrologer. "The name of a line Graeco-Egyptain…

(1477-1547) Famous German astronomer and cartographer.

Johannes Schoner

(1477-1547) Famous German astronomer and cartographer.

(1749-1827) Astronomer and mathematician who wrote the 5 volume<I>Mecanique Celeste</I> which is a landmark in applied mathematics.

Marquis De St. Simon

(1749-1827) Astronomer and mathematician who wrote the 5 volumeMecanique Celeste which is a landmark…