Question

tycho brahe did not observe stellar parallax. what conclusion did this lead him to?

Explanation:

Tycho Brahe's failure to observe stellar parallax led him to reject the heliocentric model, concluding the Earth is stationary at the universe's center.

Answer:

The Earth is stationary at the center of the universe (he rejected the heliocentric model, proposing a geo-heliocentric system where the Sun orbits Earth and other planets orbit the Sun).