astrophysics vs uranology

astrophysics and uranology both are nouns.

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

As nouns, uranology is a hypernym of astrophysics; that is, uranology is a word with a broader meaning than astrophysics:

astrophysics: the branch of astronomy concerned with the physical and chemical properties of celestial bodies
uranology: the branch of physics that studies celestial bodies and the universe as a whole

Other hypernyms of astrophysics include astronomy.

astrophysics (noun)	uranology (noun)
the branch of astronomy concerned with the physical and chemical properties of celestial bodies	the branch of physics that studies celestial bodies and the universe as a whole