Statements (23)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:star | 
| gptkbp:alsoKnownAs | gptkb:HD_47129 gptkb:Plaskett's_Star | 
| gptkbp:apparentMagnitude | 6.06 | 
| gptkbp:catalogue | gptkb:Simbad gptkb:Henry_Draper_Catalogue gptkb:Bright_Star_Catalogue | 
| gptkbp:component | HR 2421 A HR 2421 B | 
| gptkbp:constellation | gptkb:Monoceros | 
| gptkbp:declination | +06° 08′ 07″ | 
| gptkbp:discoveredBy | gptkb:John_Stanley_Plaskett | 
| gptkbp:discoveredIn | 1922 | 
| gptkbp:distanceFromEarth | about 6,600 light-years | 
| gptkbp:mass | about 100 solar masses (combined) | 
| gptkbp:rightAscension | 06h 37m 24.0s | 
| gptkbp:spectralType | O8I | 
| gptkbp:stellarSystemType | gptkb:binary_star_system | 
| gptkbp:variableType | gptkb:binary_star_system | 
| gptkbp:bfsParent | gptkb:Gamma_Canis_Majoris gptkb:Alhena | 
| gptkbp:bfsLayer | 8 | 
| https://www.w3.org/2000/01/rdf-schema#label | HR 2421 |