Canicula vs Sirius

Canicula and Sirius both are nouns.

Word	Noun	Adjective	Verb	Adverb
Canicula	Yes	No	No	No
Sirius	Yes	No	No	No

As nouns, Canicula and Sirius are synonyms defined as:

Other synonyms of Canicula include Dog Star, Sothis.

Canicula (noun)	Sirius (noun)
the brightest star in the sky; in Canis Major	the brightest star in the sky; in Canis Major