Uranus vs Ouranos

Uranus and Ouranos both are nouns.

Word	Noun	Adjective	Verb	Adverb
Uranus	Yes	No	No	No
Ouranos	Yes	No	No	No

As nouns, Uranus and Ouranos are synonyms defined as:

Uranus and Ouranos: (Greek mythology) god of the heavens; son and husband of Gaea and father of the Titans in ancient mythology

Uranus (noun)	Ouranos (noun)
a giant planet with a ring of ice particles; the 7th planet from the sun has a blue-green color and many satellites	(Greek mythology) god of the heavens; son and husband of Gaea and father of the Titans in ancient mythology
(Greek mythology) god of the heavens; son and husband of Gaea and father of the Titans in ancient mythology