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106
Claudius Ptolemy
born , Alexandria, Egypt -
153
Claudius Ptolemy
He provided the misinformation that the sun revolves around the earth -
Dec 14, 1546
Tycho Brahe is born
Knudstrup, Scania, Denmark -
Dec 27, 1571
Johannes Kepler is born
Weil der Stadt, Württemberg [Germany] -
Jan 1, 1572
Tycho Brahe observed a supernova
He observed it in the constellation of Cassiopeia and disproved one of the commonly held visions of modern astronomers. -
Jan 1, 1575
Tycho Brahe built an enormous observatory
He kept meticulous observations of the heavens here. Brahe intently tracked the planets in their entire visible orbit across the sky, creating the most precise observations made at the time. -
Jan 1, 1577
Tycho Brahe observed a comet
When he observed the comet, which used to be thought to be an atmospheric disturbances, he proved otherwise. -
Tycho Brahe Died
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Johannes Kepler discovered the three major laws of Planetary Motion
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Giovanni Cassini is born
Perinaldo, Republic of Genoa [Italy] -
Johannes Kapler died
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Edmond Halley
*Born in Haggerston, London
*First to calcute a comet later known as Halley's Comet.
*Died January 14, 1742
*Contributed 18 years -
Giovanni Cassini discovered Iapetus
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Giovanni Cassini discovered Rhea
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Giovanni Cassini discovered the Cassini Division
The Cassini Division is a large gap between Rings A and B around Saturn -
Giovanni Cassini discovered Tethys
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Giovanni Cassini discovered Dione
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Giovanni Cassini died
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charles messier
Birth place: Badonviller, France; died April 12, 1817 -
William Herschel
*Born in Hanover Germany.
*Discovered Plant Uranus and several moon aroung several gas giants
*Died August 25, 1822. Contributed about 30 years.
*contributed about 30 years -
major discovery
Charles Messier was a French astronomer most notable for publishing an astronomical catalogue consisting of nebulae and star clusters that came to be known as the 110 "Messier objects" -
Johann G. Galle
*Born in Radis, Germany
*Died July 10, 1910
*Discovered Neptune and Three comets
*contributed about 50 years -
Edwin Hubble
born -
edwin huble
Edwin Powell Hubble was an American astronomer who played a crucial role in establishing the field of extragalactic astronomy and is generally regarded as one of the most important observational cosmologists of the 20th century -
Carl Saganis born
Brooklyn, N.Y., U.S.A. -
stephen hawking
stephen hawking was born on jan. 8, 1942 in oxford, united kingdom -
Edwin Hubble
died -
stephen hawking's discovery
1973 - In the same year he joins the department of applied mathematics and theoretical physics at Cambridge, he discovers that black holes could leak energy and particles into space, and could even explode. It is published in the journal Nature, a year later. The theory is known as Hawking radiation. -
"Cosmos" by Carl Sagan is produced and aired
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Carl Sagan died
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Claudius Ptolemy
died in Alexandria, Egypt
