Statements (28)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | 
                                    
                                        
                                            gptkb:hypothetical_astronomical_structure
                                        
                                         | 
                            
| gptkbp:alsoKnownAs | 
                                    
                                        
                                            gptkb:Oort_cloud
                                        
                                         | 
                            
| gptkbp:believedToBeSourceOf | 
                                    
                                        
                                            
                                            long-period comets
                                        
                                        
                                         | 
                            
| gptkbp:contains | 
                                    
                                        
                                            
                                            trans-Neptunian objects
                                        
                                        
                                         icy planetesimals dormant comets  | 
                            
| gptkbp:distanceFromEarth | 
                                    
                                        
                                            
                                            2,000 to 100,000 AU
                                        
                                        
                                         | 
                            
| gptkbp:influencedBy | 
                                    
                                        
                                            
                                            molecular clouds
                                        
                                        
                                         galactic tides passing stars  | 
                            
| gptkbp:innerBoundary | 
                                    
                                        
                                            gptkb:Kuiper_Belt
                                        
                                         | 
                            
| gptkbp:location | 
                                    
                                        
                                            
                                            outermost region of the Solar System
                                        
                                        
                                         | 
                            
| gptkbp:mass | 
                                    
                                        
                                            gptkb:unknown
                                        
                                         | 
                            
| gptkbp:namedAfter | 
                                    
                                        
                                            gptkb:Jan_Oort
                                        
                                         gptkb:Ernst_Öpik  | 
                            
| gptkbp:notDirectlyObserved | 
                                    
                                        
                                            
                                            true
                                        
                                        
                                         | 
                            
| gptkbp:outerBoundary | 
                                    
                                        
                                            
                                            interstellar space
                                        
                                        
                                         | 
                            
| gptkbp:partOf | 
                                    
                                        
                                            gptkb:Solar_System
                                        
                                         | 
                            
| gptkbp:proposedBy | 
                                    
                                        
                                            gptkb:Jan_Oort
                                        
                                         gptkb:Ernst_Öpik 1932 1950  | 
                            
| gptkbp:region | 
                                    
                                        
                                            
                                            reservoir of comets
                                        
                                        
                                         | 
                            
| gptkbp:shape | 
                                    
                                        
                                            
                                            spherical
                                        
                                        
                                         | 
                            
| gptkbp:status | 
                                    
                                        
                                            
                                            hypothetical
                                        
                                        
                                         | 
                            
| gptkbp:bfsParent | 
                                    
                                        
                                            gptkb:Ernst_Öpik
                                        
                                         | 
                            
| gptkbp:bfsLayer | 
                                    
                                        
                                            
                                            7
                                        
                                        
                                         | 
                            
| https://www.w3.org/2000/01/rdf-schema#label | 
                                    
                                        
                                            
                                            Öpik-Oort cloud
                                        
                                        
                                         |