observationPeriod

URI: https://gptkb.org/prop/observationPeriod
3 triples
GPTKB property
Random triples
Subject Object
gptkb:UDF_(Ultra_Deep_Field)_catalogue September 2003 – January 2004
gptkb:Hipparcos_satellite_data 1989-1993
gptkb:Halley’s_star_catalogue_of_the_Southern_Hemisphere 1676–1678