Statements (13)
Predicate | Object |
---|---|
gptkbp:instanceOf |
astronomer
|
gptkbp:compiledBy |
gptkb:Harvard_College_Observatory
|
gptkbp:contains |
stellar spectra
star classifications |
gptkbp:expansion |
gptkb:Henry_Draper_Extension_Charts
|
gptkbp:firstPublished |
1918
|
https://www.w3.org/2000/01/rdf-schema#label |
Henry Draper Extension
|
gptkbp:namedAfter |
gptkb:Henry_Draper
|
gptkbp:partOf |
gptkb:Henry_Draper_Catalogue
|
gptkbp:publishedBy |
gptkb:Harvard_College_Observatory
|
gptkbp:usedFor |
stellar classification
|
gptkbp:bfsParent |
gptkb:Henry_Draper_Catalogue
|
gptkbp:bfsLayer |
6
|