Digital Access to a Sky Century at Harvard

URI: https://gptkb.org/entity/Digital_Access_to_a_Sky_Century_at_Harvard

GPTKB entity

Statements (49)

Predicate	Object
gptkbp:instanceOf	astronomical project
gptkbp:abbreviation	gptkb:DASCH
gptkbp:affiliatedWith	gptkb:Harvard_University
gptkbp:availableOn	publicly accessible online
gptkbp:collaboratesWith	gptkb:Harvard_Library gptkb:Smithsonian_Astrophysical_Observatory gptkb:Center_for_Astrophysics_\|_Harvard_&_Smithsonian
gptkbp:collectionSize	over 500,000 glass photographic plates
gptkbp:country	gptkb:United_States
gptkbp:digitizationMethod	custom high-speed scanner
gptkbp:enables	century-scale light curve analysis historical sky monitoring
gptkbp:field	gptkb:astronomy
gptkbp:focus	time-domain astronomy
gptkbp:format	gptkb:JPEG gptkb:FITS CSV
gptkbp:fundedBy	gptkb:Harvard_University gptkb:National_Science_Foundation private donors
gptkbp:goal	digitize Harvard's astronomical photographic plate collection
https://www.w3.org/2000/01/rdf-schema#label	Digital Access to a Sky Century at Harvard
gptkbp:locatedIn	gptkb:Harvard_College_Observatory
gptkbp:notableAchievement	public engagement in astronomy discovery of new variable stars long-term AGN variability studies recovery of historical supernovae
gptkbp:notableFor	preservation of astronomical heritage longest time baseline for optical variability studies
gptkbp:notableProject	gptkb:Jonathan_Grindlay
gptkbp:preserves	glass plate negatives logbooks and metadata
gptkbp:relatedTo	gptkb:Harvard_Plate_Collection astronomical archives time-domain surveys
gptkbp:releaseDate	ongoing
gptkbp:scanningResolution	11 microns per pixel
gptkbp:startDate	2005
gptkbp:timeSpanCovered	1885–1992
gptkbp:type	photographic plates light curves digital scans
gptkbp:uses	study of quasars study of supernovae study of variable stars study of long-term variability in the sky
gptkbp:website	https://dasch.rc.fas.harvard.edu/
gptkbp:bfsParent	gptkb:DASCH_(Digital_Access_to_a_Sky_Century_@_Harvard)
gptkbp:bfsLayer	8