• 2MASS - infrared all-sky survey done at a wavelength of two microns (2 Micron All Sky Survey)
  • 2MASS Image Services
  • GATOR Catalog Search
• ADS Astronomy Abstract Query Form - look up astronomy references and publications
  • ADS Journal/Volume/Page Query
• Astro-ph (arxive.org) / Astro-ph (lanl.gov) - Astrophysics preprint server
• Atomic Data for Astrophysics - provides links to basic atomic data required for calculation of the ionization state of astrophysical plasmas and for quantitative spectroscopy
• Atomic Spectral Line Databases - info on atomic line transitions based on Kurucz files
• Canadian Astronomy Data Centre (CADC) - access to many astronomical archives, surveys, and catalogs
• A Catalog and Atlas of Cataclysmic Variables
• Central Bureau for Astronomical Telegrams - How to report astronomical discoveries and other databases
• CDS archive (Centre de Données astronomiques de Strasbourg) - databases, archives, bibliography, etc.
  • Aladin Interactive Sky Atlas
  • Dictionary of Nomenclature (Fr) / Dictionary of Nomenclature (US)
  • SIMBAD (Fr) / SIMBAD (US)
  • VizieR Catalogue (Fr) / VizieR Catalogue (US)
• Digital Library - ADS digital library, online books relating to astronomy and astrophysics
• Digitized Sky Survey - scanned images of the entire sky
  • DSS Retrieval Form
  • DSS at the Canadian Astronomy Data Centre
  • Other DSS Sites Around the World
• Digital Stellar Spectra - postscript images of various different types of stellar spectra
• Guide Star Catalog - HST Guide Star Catalog at MAST
• Handbook of Space Astronomy and Astrophysics - Zombeck, essential reference for space astronomy and astrophysics
• HEASARC - High Energy Astrophysics Science Aechive Research Center
• Hipparcos Space Astrometry Mission
  • Hipparcos and Tycho Catalogues
  • Search the Hipparcos and Tycho Catalogues
  • VizieR Catalogue Query
• Information Bulletin on Variable Stars (IBVS)
• InfraRed Science Archive (IRAS) - access data on infrared sky surveys: IRAS, MSX, and 2MASS
  • IRSA GATOR
  • 2MASS Image Services
• International Astronomy Meetings List - list of professional astronomy meetings
• Journals and other Publications
• MK Standard Stars Catalog - on-line, searchable, catalog of MK spectral standard stars (MK Standard Stars Garcia 1989)
• Multiwavelength Milky Way - images of the Milky Way in a variety of wavelengths (radio, infrared, optical, x-ray, gamma ray, etc.)
• NASA Astrophysics Data System (ADS) - Abstract Service - search for astronomical journal articles by author, title, or keywords; site includes links to many articles on-line
  • ADS Astronomy Query Form
  • ADS Journal/Volume/Page Query
• NED - NASA/IPAC Extragalactic Database
• Northern Sky Variability Survey
• NStars Database - Basic data on the nearest star systems
• PIMMS - program for predicting x-ray photon count rates from various objects using a number of different x-ray satellites
• GEOS RR Lyr Database - database intended to help observations and studies of RR Lyr stars by amateur astronomers
• SIMBAD (at Strasbourg), SIMBAD Mirror (at Harvard) - astronomical database of basic data, cross-identifications, observational measurements, and bibliography for objects outside our solar system
• Sky View Virtual Telescope - view images of celestial objects in a variety of different wavelengths (visual, radio, x-ray, gamma ray, ect...)
• Sloan Digital Sky Survey (SDSS) - survey that will map in detail one-quarter of the entire sky
  • SDSS Data Release 1
  • SDSS Data Release 2
  • SDSS Data Release 3
  • SDSS Data Release 8
• The Star*s Family of Astronomy Related Resources - The StarPages - searchable database of organizations, institutions, companies, personal web pages, astronomy abbreviations, acronyms, and lots more
• USNO-B1.0 Catalog
• VizieR Catalogue Service - access to published astronomical catalogues and data tables available on line
• White Dwarf Research Corporation

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