Definitions

1. noun

A type of astronomical object, especially a supernova remnant; a type of variable star

“The astronomer spent her career studying Tycho stars.”

2. proper noun

Tycho Brahe, a Danish astronomer who lived in the 16th century and made precise measurements of the positions of celestial bodies

“Tycho Brahe’s contributions to astronomy paved the way for Johannes Kepler’s laws of planetary motion.”