mar 9, 1563 - Tycho Brahe observes a conjunction
Description:
Tycho rejected Copernicus' model for his own, where the sun and moon orbit the earth and the other planets orbit the sun. The stationary earth helped him avoid controversy.A stellar parallax had not yet been observed and so he knew either the earth was stationary or the stars were much further away.
In 1563, he observed a conjunction between Jupiter and Saturn, where they are in a straight line with the earth and so appear to be in the same place in the sky. He had predicted this using the Copernican model, but it was off by a few days.
Added to timeline:
Date:
mar 9, 1563
Now
~ 462 years ago