astronomy vs uranology

astronomy and uranology both are nouns.

Word	Noun	Adjective	Verb	Adverb
astronomy	Yes	No	No	No
uranology	Yes	No	No	No

As nouns, astronomy and uranology are synonyms defined as:

astronomy and uranology: the branch of physics that studies celestial bodies and the universe as a whole

astronomy (noun)	uranology (noun)
the branch of physics that studies celestial bodies and the universe as a whole	the branch of physics that studies celestial bodies and the universe as a whole