Group of stars.
An appositive or appositive phrase renames a noun or pronoun that is right beside, specifically after, it. It is usually used to provide additional information, like a definition or clarification. In this sentence, "group of stars" is defining "constellations" making it the appositive phrase.
Answer:
participant
Explanation:
Other options don't come close to the meaning given.
Answer:
a
Explanation:
its to avoid plagarism(I think)
Ask someone and if they don’t know look it up
