Astronomy Timeline

Observing a Supernova in Taurus

Apr 30, 1054

Chinese astronomers obsereve a supernova in Taurus

Copernicus publishes heliocentric theory

Apr 30, 1543

Copernicus publishes his heliocentric theory of the Universe

Supernova in Cassiopeia

Apr 30, 1572

Tyhco Brahe discovers a supernova in the Constellation of Cassiopeia

First Telescope invented

Apr 30, 1608

Hans Lippershey (Dutch) invents the telescope.

First and Second Laws of Planetary Motion

Apr 30, 1609

First and second Laws of Planetary Motions are announced by Kepler.

Marking on Mars

Apr 30, 1659

Huygens finds a marking on mars

First reflecting Telescope built

Apr 30, 1668

Newton built the very first reflecting telescope.

Uranus discovered

May 1, 1781

Herschel discovered Uranus

First asteroid discovered

May 1, 1801

First asteroid, Ceres is discovered by Piazzi

Sun Spot cycle is described

May 1, 1843

The sunspot cycle is described by Samuel Heinrich Schwabe.