Astronomer pinpointed 777 stars before telescope's invention
Tycho Brahe, born on December 14, 1546, was a Danish astronomer who accurately measured positions of 777 stars, before the invention of telescope. Brahe made observations of Jupiter and Saturn conjunction (overlapping) and corrected astronomical tables made by Nicolaus Copernicus. He further spotted a "new star", the supernova of 1572, regarded as the most important astronomical event in his life.