|
gptkbp:instanceOf
|
gptkb:astronomical_photographic_plate_archive
|
|
gptkbp:contains
|
over 500,000 glass photographic plates
|
|
gptkbp:country
|
gptkb:United_States
|
|
gptkbp:digitizedBy
|
gptkb:DASCH_(Digital_Access_to_a_Sky_Century_@_Harvard)
|
|
gptkbp:location
|
gptkb:Harvard_College_Observatory
|
|
gptkbp:mediaType
|
glass photographic plate
|
|
gptkbp:notableFor
|
longest continuous record of the sky
|
|
gptkbp:owner
|
gptkb:Harvard_University
|
|
gptkbp:preservedIn
|
gptkb:Harvard_College_Observatory
|
|
gptkbp:relatedTo
|
gptkb:stellar_classification
gptkb:Harvard_Computers
gptkb:Harvard_College_Observatory_Plate_Stacks
Cepheid variables
variable stars
|
|
gptkbp:startDate
|
1885-1992
|
|
gptkbp:usedBy
|
gptkb:Williamina_Fleming
gptkb:Edward_Charles_Pickering
gptkb:Annie_Jump_Cannon
gptkb:Henrietta_Swan_Leavitt
|
|
gptkbp:usedFor
|
astronomical research
|
|
gptkbp:bfsParent
|
gptkb:Harvard–Smithsonian_Center_for_Astrophysics
gptkb:Harvard_College_Observatory
|
|
gptkbp:bfsLayer
|
6
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Harvard Plate Collection
|