PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Calculates the position and simulates the movement of some 100,000,000 stars, more than 1,000,000 deep space objects including nebulae, galaxies and quasars, over 150,000 asteroids, 100+ planetary moons and some 2,000 comets.
http://www.w3.org/ns/prov#wasQuotedFrom
  • astronomy2009.org