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X-Ray Binaries Catalog
XRBCAT is a catalog of X-ray binaries, based on the van Paradijs (1996) compilation, and updated by Nick White to include all the new (mostly transient) systems discovered since... -
XMM-Newton OB Stars Catalog
Following the advent of increasingly sensitive X-ray observatories, deep observations of early-type stars became possible. However, the results for only a few objects or... -
The VIIth Catalog of Galactic Wolf-Rayet Stars
The VIIth Catalogue of Galactic Population I Wolf-Rayet (WR) Stars provides improved coordinates, spectral types, and bv photometry of known WR stars and adds 71 new stars... -
Woolley Catalog of Stars within 25 Parsecs
This catalog was constructed at the Royal Greenwich Observatory in order to enlarge the Gliese (1957, Mitt. Astron. Rechen-Inst., Ser. A, No. 8) compilation. It contains data on... -
Wood Interacting Binaries Catalog
This catalog, also called the Finding List (FL) of Interacting Binaries (5th edition), was abstracted from the Card Catalog maintained at the University of Florida which... -
Washington Double Star Catalog
The Washington Double Star Catalog (WDS), maintained by the United States Naval Observatory (USNO), is the world's principal database of astrometric double and multiple star... -
Wackerling Catalog of Early-Type Emission-Line Stars
The Wackerling Catalog contains entries for 5326 early-type emission-line stars. Of these stars, 1424 have no spectral classification but are assumed to be of early type. Some... -
UVOT Bright Star Catalog
This catalog was compiled from 4 catalogs: Tycho-2, GVCS III, NGC, and the Yale Bright Star Catalog. All catalogs were preprocessed before compiling this catalog to achieve... -
Ultraluminous X-Ray Sources in External Galaxies Catalog
This table is a catalog of ultraluminous X-ray sources (ULXs) in external galaxies, where ULXs have been defined as compact, off-nuclear X-ray sources with X-ray luminosities in... -
Tycho-2 Catalog of the 2.5 Million Brightest Stars
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,... -
TeV Gamma-Ray Source Catalog
TeVCat (<a href="http://tevcat.uchicago.edu/">http://tevcat.uchicago.edu/</a>) is an online, interactive catalog for very-high-energy (VHE: energies, E >~ 50 GeV)... -
TD1 Stellar Ultraviolet Fluxes Catalog
The Belgian/UK Ultraviolet Sky Survey Telescope (S2/68) in the ESRO TD1 satellite carried out a controlled scan of the entire sky. It measured the absolute ultraviolet flux... -
Symbiotic Stars Catalog
This database table contains a catalog of confirmed and suspected symbiotic stars. The list includes 188 symbiotic stars as well as 30 objects suspected of being symbiotic. For... -
SMC H-Alpha Emission Stars/Nebulae
This database table contains a list of H-alpha emission-line stars and small nebulae in the Small Magellanic Cloud (SMC) that were discovered in an objective-prism survey. This... -
SMC Probable Member Stars Catalog
An objective prism survey was conducted to discover probable members of the Small Magellanic Cloud. Interference filters were used to restrict the wavelength range and, hence,... -
Star Formation in Nearby Clouds (SFiNCs) Probable Cluster Members Catalog
The Star Formation in Nearby Clouds (SFiNCs) project is aimed at providing a detailed study of the young stellar populations and of star cluster formation in the nearby 22... -
SloanDigitalSkySurveyDR4WhiteDwarf&HotSubdwarfCatalog
No Description Available -
Spectroscopic Binary Orbits Ninth Catalog (Dynamic Version)
The Ninth Catalog of Spectroscopic Binary Orbits (SB9) continues the series of compilations of spectroscopic orbits carried out over the past 35 years by Batten and... -
Smithsonian Astrophysical Observatory Star Catalog
This database is based on the electronic version of the SAO catalog from the Astronomical Data Center, which is itself based on an original binary version of the Smithsonian... -
Ritter Binaries Related to CVs Catalog (7.21 Edition)
This HEASARC database table contains information on the so-called "Related Objects" only, as taken from the Catalog of Cataclysmic Binaries, Low-Mass X-ray Binaries,...