Rigil Kent vs Rigil

Rigil Kent and Rigil both are nouns.

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

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

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

Other synonyms of Rigil Kent include Alpha Centauri.

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