| gptkbp:instanceOf | gptkb:black_hole 
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                                | gptkbp:accretionDisk | present 
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                                | gptkbp:alternativeName | gptkb:M87* 
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                                | gptkbp:apparentMagnitude | 9.59 (host galaxy) 
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                                | gptkbp:category | gptkb:astrophysical_object gptkb:radio_station
 gptkb:active_galactic_nucleus
 
 | 
                        
                            
                                | gptkbp:declination | +12° 23′ 28″ 
 | 
                        
                            
                                | gptkbp:discoveredBy | Heber Curtis (jet, 1918) 
 | 
                        
                            
                                | gptkbp:distanceFromEarth | 53 million light-years 
 | 
                        
                            
                                | gptkbp:emits | relativistic jet 
 | 
                        
                            
                                | gptkbp:eventHorizonDiameter | ~38 billion km 
 | 
                        
                            
                                | gptkbp:evidence | gptkb:general_relativity 
 | 
                        
                            
                                | gptkbp:firstImageCapturedBy | gptkb:Event_Horizon_Telescope 
 | 
                        
                            
                                | gptkbp:firstImageDate | April 2019 
 | 
                        
                            
                                | gptkbp:hostedBy | gptkb:Messier_87 
 | 
                        
                            
                                | gptkbp:influenced | dynamics of M87 galaxy core 
 | 
                        
                            
                                | gptkbp:jetLength | ~5,000 light-years 
 | 
                        
                            
                                | gptkbp:locatedIn | gptkb:Messier_87 gptkb:Virgo_Cluster
 
 | 
                        
                            
                                | gptkbp:mass | 6.5 billion solar masses 
 | 
                        
                            
                                | gptkbp:notableFor | first direct image of a black hole 
 | 
                        
                            
                                | gptkbp:rightAscension | 12h 30m 49.4s 
 | 
                        
                            
                                | gptkbp:SchwarzschildRadius | ~120 AU 
 | 
                        
                            
                                | gptkbp:spin | gptkb:unknown 
 | 
                        
                            
                                | gptkbp:studiedBy | gptkb:Event_Horizon_Telescope_Collaboration 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:M87* 
 | 
                        
                            
                                | gptkbp:bfsLayer | 7 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | M87 black hole 
 |