Little Dipper vs North Star

Little Dipper and North Star both are nouns.

Word	Noun	Adjective	Verb	Adverb
Little Dipper	Yes	No	No	No
North Star	Yes	No	No	No

Little Dipper (noun)	North Star (noun)
a cluster of seven stars in Ursa Minor; at the end of the dipper's handle is Polaris	the brightest star in Ursa Minor; at the end of the handle of the Little Dipper; the northern axis of the earth points toward it