Match these vocabulary words taken from great astronomers with their definitions .

Answer:
Celestial - relating to the sky
Interpose - to come between two things, to interrupt
Sagacity - the capacity to reason, judge, and act intelligently
Conjecture - to form an opinion
Explanation:
All fields of study require particular words that can name subjects these fields discuss. These are some examples of words that are necessary for astronomers. Celestial refers to anything that is in the sky, an important idea in astronomy. Interpose refers to something that gets in between two other things. Sagacity refers to a person's ability to think in an intelligent way. Finally, conjecture is an opinion or conclusion.