This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Uppsala General Catalogue (UGC) | |
|---|---|
| Name | Uppsala General Catalogue |
| Abbreviation | UGC |
| Country | Sweden |
| Year | 1973 |
| Entries | ≈12,921 |
| Type | galaxy catalogue |
| Based on | photographic survey of the Palomar Observatory Sky Survey |
Uppsala General Catalogue (UGC) The Uppsala General Catalogue is a comprehensive printed catalogue of galaxies intended as a reference for observational astronomy, compiling morphological and photometric data. It was prepared to support optical studies and cross-identification with radio, infrared, and X-ray surveys, and it has been widely used alongside major observatories and institutions.
The Uppsala General Catalogue brings together galaxy positions, sizes, magnitudes, and morphological types for northern-sky objects, serving researchers working with data from Palomar Observatory, Mount Wilson Observatory, Kitt Peak National Observatory, Cerro Tololo Inter-American Observatory, and facilities associated with European Southern Observatory. The catalogue interfaces with datasets from the National Aeronautics and Space Administration, the European Space Agency, the Smithsonian Astrophysical Observatory, the Harvard College Observatory, the Max Planck Society, and the Royal Astronomical Society. Catalog users cross-reference entries with surveys and missions such as Palomar Observatory Sky Survey, Sloan Digital Sky Survey, Two Micron All Sky Survey, Infrared Astronomical Satellite, ROSAT, Chandra X-ray Observatory, XMM-Newton, and Very Large Array archives.
The compilation drew on photographic plates produced by the Palomar Observatory Sky Survey and was organized by astronomers connected to Uppsala Astronomical Observatory and Swedish institutions. The effort paralleled cataloguing work at the Copenhagen University Observatory, the Leiden Observatory, and the Observatoire de Paris, and it responded to needs articulated at conferences hosted by the International Astronomical Union and panels convened by the American Astronomical Society. Influences include earlier catalogues such as the New General Catalogue, the Index Catalogue, the Messier Catalogue, the Catalogue of Galaxies and Clusters of Galaxies, and compilations by astronomers at Mount Wilson Observatory and the Carnegie Institution for Science. The editors consulted plate archives at institutions including the California Institute of Technology and the University of California, Berkeley.
Entries list coordinates referenced to standards developed at the International Celestial Reference Frame and align with nomenclature used by the Minor Planet Center and the International Astronomical Union. Morphological classifications reference criteria similar to those of Edwin Hubble, Gerard de Vaucouleurs, and systems used by teams at the Observatoire de Paris and the Max Planck Institute for Astronomy. Photometric quantities were tied to magnitude scales in use at the Royal Greenwich Observatory and calibration sources from the Landolt photometric standards and datasets maintained by the U.S. Naval Observatory. For cross-identification, the catalogue provides links to identifiers from the New General Catalogue, the Principal Galaxies Catalogue, the Morphological Catalogue of Galaxies, the Vorontsov-Velyaminov Interacting Galaxies, and radio catalogues from the NRAO and the Cambridge Radio Astronomy Group.
The catalogue includes many galaxies that are prominent in observational programs at institutions such as Harvard University, Princeton University, University of Cambridge, University of Oxford, Stanford University, Massachusetts Institute of Technology, Yale University, Columbia University, University of Chicago, Johns Hopkins University, and international centers including Max Planck Institute for Astrophysics, INAF, and Instituto de Astrofísica de Canarias. Among entries are galaxies that appear in studies involving Edwin Hubble’s morphological sequence, targets of the Hubble Space Telescope, sources observed by the Spitzer Space Telescope, and objects compared with radio sources from the Very Large Array and Atacama Large Millimeter/submillimeter Array. Specific galaxies in the catalogue have been central to investigations led by astronomers associated with Perimeter Institute, Space Telescope Science Institute, Jet Propulsion Laboratory, and projects funded by agencies such as the National Science Foundation, Swedish Research Council, and European Research Council.
Researchers at observatories like Mount Palomar Observatory, Goldstone Observatory, Green Bank Observatory, and Arecibo Observatory have used the catalogue for target selection and cross-matching with radio and infrared databases maintained by the National Radio Astronomy Observatory and the Space Science Institute. The Uppsala compilation has influenced surveys and follow-up work connected to missions and projects at the Cerro Tololo Inter-American Observatory, Las Campanas Observatory, Mauna Kea Observatories, the Keck Observatory, and the Subaru Telescope. It has been cited in studies published by the Astrophysical Journal, Monthly Notices of the Royal Astronomical Society, and Astronomy & Astrophysics, and used in collaboration efforts involving institutions such as Caltech, MIT Kavli Institute, Princeton Plasma Physics Laboratory, and international consortia organized through the International Astronomical Union.
The principal printed edition was released in the early 1970s and has been referenced in subsequent electronic databases maintained by the Centre de données astronomiques de Strasbourg, the SIMBAD Astronomical Database, the NASA/IPAC Extragalactic Database, and catalog services at the VizieR system. Later projects and data centers at the Space Telescope Science Institute, European Southern Observatory Science Archive Facility, Canadian Astronomy Data Centre, and the Australian Astronomical Observatory incorporated Uppsala identifiers into multiwavelength cross-matching pipelines. The catalogue’s legacy persists through citation and integration with modern surveys such as the Sloan Digital Sky Survey, Pan-STARRS, Dark Energy Survey, Gaia, and planning for next-generation facilities like the Vera C. Rubin Observatory.
Category:Astronomical catalogues