The Tychonic Model

1610

Galileo's use of the telescope heralds a revolution that eventually supplants astronomy observed with the unaided eye.

1620

Kepler finishes formulating his laws of planetary motion.

1670s

All of Europe's capital cities have large observatories built.

Tycho Brahe

_______ required precise observation in order to solve the mystery and prove something.

Jupiter and Saturn

In 1562, the conjunction of ________ occurred days earlier than predicted by the best available astronomical tables.

Cassiopeia

In 1572, a bright new star appeared in the sky, in the constellation _______, and remained visible for 18 months before fading from view.

supernova

The supernova remnant, known as Cassiopeia B, is still observable in the sky today — which was later determined to be a ______.

0\.5 arcminutes

Tycho set out to build a system of armillary spheres, quadrants, and sextants that could measure the position of a planet in the sky with an accuracy of about ________.

brass plates

At his observatory on Hven, Tycho meticulously measured the star positions and noted them on _______ on a spherical wooden globe with a diameter of about 5 ft 3 inches.

1,000 stars

His globe had about ________ recorded on it by the year 1595. It could rotate around a polar axis, and a horizontal ring was employed to help distinguish between stars that were above and below the horizon at any given time.

1728

In _____, the globe that Tycho traveled with was *destroyed* in a fire in *Copenhagen, Denmark*.

Tychonic model

The ______ placed Earth at the center of the cosmos, but the five known planets now orbited the sun. Despite his admiration for the Copernican model, Tycho believed that the Earth did not move.

Johannes Kepler

Tycho’s thorough observations enabled ____ to establish the elliptical nature of the planets' orbits and to develop a model that would supersede both the Tychonic and Copernican models.

Edmond Halley

an English astronomer, learned about the proper motion of stars in 1718 thanks to Tycho's improved measurements.

1838

Only in _____ was stellar parallax discovered.

Tyge Ottesen Brahe

He was born a nobleman in 1546 in Scania.

King Frederick II

He granted Tycho the island of Hveen in the Oresund, Strait in 1575, on which he constructed an observatory.

Christian IV

Tycho later closed the observatory after a disagreement with ____, Frederick's son and successor, regarding the possible transfer of the island to his children.

Emperor Rudolph II

Tycho was appointed Imperial Mathematician to ______ in Prague in 1599.

metal nose

Tycho was well known for having a distinctive ______ that was the result of a duel he had in school.

1601

Tyco passed away in ____, allegedly from a ruptured bladder, after politely declining to use the restroom during a lengthy royal banquet.