Rigil vs Rigil Kent

Rigil and Rigil Kent both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rigil	Yes	No	No	No
Rigil Kent	Yes	No	No	No

As nouns, Rigil and Rigil Kent are synonyms defined as:

Rigil and Rigil Kent: brightest star in Centaurus; second nearest star to the sun

Other synonyms of Rigil include Alpha Centauri.

Rigil (noun)	Rigil Kent (noun)
brightest star in Centaurus; second nearest star to the sun	brightest star in Centaurus; second nearest star to the sun