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Federal
Hipparcos Main Catalog
National Aeronautics and Space Administration —
The Hipparcos and Tycho Catalogues are the primary products of the European Space Agency's astrometric mission, Hipparcos. The satellite, which operated for four... -
Federal
Tycho-2 Catalog of the 2.5 Million Brightest Stars
National Aeronautics and Space Administration —
The Hipparcos and Tycho catalogs are the primary products of the European Space Agency's astrometric mission, Hipparcos. The satellite, which operated for four years,... -
Federal
XMM-Newton Optical Monitor Serendipitous UV Source Survey Catalog, v6.1
National Aeronautics and Space Administration —
The 2023 release of the XMM OM Serendipitous Ultraviolet Source Survey (XMM-SUSS6.1) Catalog, a catalog of optical/UV sources detected by the Optical Monitor (OM) on-... -
Federal
HESS (High Energy Stereoscopic System) Source Catalog
National Aeronautics and Space Administration —
H.E.S.S. is a system of Imaging Atmospheric Cherenkov Telescopes for the investigation of cosmic gamma rays in the 100 GeV energy range. The name H.E.S.S. stands for... -
Federal
NGC 2808 XMM-Newton X-Ray Point Source Catalog
National Aeronautics and Space Administration —
Galactic globular clusters harbor binary systems that are detected as faint X-ray sources. These close binaries are thought to play an important role in the stability... -
Federal
XMM-Newton Optical Monitor SUSS Catalog, v6.1: Observation IDs
National Aeronautics and Space Administration —
The 2023 release of the XMM OM Serendipitous Ultraviolet Source Survey (XMM-SUSS6.1) Catalog, a catalog of optical/UV sources detected by the Optical Monitor (OM) on-...