missionsAstroSCI
Astronomy
The :isLeafConcept property marks whether a SKOS concept is a leaf SKOS concept.
ESA Data Ontology
Gaia
Gaia is a European space mission providing astrometry, photometry, and spectroscopy of more than 1000 million stars in the Milky Way. Also data for significant samples of extragalactic and Solar system objects is made available. The Gaia Archive contains deduced positions, parallaxes, proper motions, radial velocities, and brightnesses. Complementary information on multiplicity, photometric variability, and astrophysical parameters is provided for a large fraction of sources. Gaia Collaboration et al. (2016): "The Gaia mission", Astronomy & Astrophysics, 595, A1; https://doi.org/10.1051/0004-6361/201629272