Astronomers Ferraro and Newman study the speed of the stars circling the galactic center of the galaxy.
Identify the appositive or appositive phrase.
galaxy
Astronomers
the galactic center
Ferraro and Newman
Ferraro and Newman
It galaxy
GALAXY
The appositive in this sentence is "Ferraro and Newman."
To identify the appositive or appositive phrase, we need to look for a noun or noun phrase that renames or gives additional information about another noun in the sentence. In this case, "Ferraro and Newman" renames or gives additional information about "Astronomers."