On This Day

December 1612 in History

Events in History

  • Dec 15 German Astronomer Simon Marius is 1st to observe Andromeda galaxy through a telescope

Event of interestEvent of Interest

Dec 28 First observation of Neptune - Galileo observes and records a "fixed star" without realising it is a planet

Astronomer and Physicist Galileo Galilei
Astronomer and Physicist
Galileo Galilei