PSR J1748−2446ad
The pulsar is located in a globular cluster of stars called Terzan 5 , located approximately 18 , 000 light-years from Earth in the constellation Sagittarius . It is part of a binary system and undergoes regular eclipses with an eclipse magnitude of about 40% . 
<triplet> Terzan 5 <subj> globular cluster <obj> instance of <subj> constellation Sagittarius <obj> constellation