Ursa Minor vs constellation

Ursa Minor and constellation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ursa Minor	Yes	No	No	No
constellation	Yes	No	No	No

Ursa Minor (noun)	constellation (noun)
a constellation outside the zodiac that rotates around the North Star, also known as the Little Bear or Little Dipper	an arrangement of parts or elements
	a configuration of stars as seen from the earth