About: http://webisa.webdatacommons.org/182855932

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	But, since Virgo Cluster is 50 million light years away from us, and we just saw the SN 1979C, does not it mean that at the moment, the black hole in question is a wee bit older than 30 years?
http://www.w3.org/ns/prov#wasQuotedFrom	harvard.edu