Does the {declination} of the {3C 273} {equals} {2.4628656}
Does the 3C 373 have a declination that is equal to 2.4628656?
ASK WHERE { wd:Q229318 wdt:P6258 ?obj filter(?obj = 2.4628656) } 
ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q229318> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P6258>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj. filter(?obj = 2.4628656) }
Does the 3C 373 have a declination that's break even with to 2.4628656?