List of Astronomy Acronyms - C

C

  • C - Cambridge Catalog, 2C (Second Cambridge Catalog), 3C (Third Cambridge Catalog)
  • CADC – (organization) Canadian Astronomy Data Centre
  • CAHA – (organization) Centro Astronómico Hispano Alemán, a German-Spanish Astronomical Centre
  • CANDELS – (survey) Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey or Cosmic Assembly and Dark Energy Legacy Survey
  • CAPS – (instrumentation) Cassini Plasma Spectrometer, an instrument on the Cassini spacecraft
  • CARA – (organization) California Association for Research in Astronomy
  • CARA – (organization) Center for Astrophysical Research in Antarctica
  • CASCA – (organization) Canadian Astronomical Society / Société canadienne d'astronomie (the name is officially bilingual)
  • CASS – (organization) Center for Advanced Space Studies
  • CBR – (celestial object) Cosmic Background Radiation
  • CC – (celestial object) Candidate Companion, a newly detected observed object that initially appears to orbit another celestial object
  • CCD – (instrumentation) Charge Coupled Device
  • CCD – (astrophysics terminology) – Color-Color Diagram, a plot that compares the differences between magnitudes in different wave bands
  • CCDM – (catalog) Catalog of Components of Double and Multiple Stars
  • CCO – (catalog) Catalogue of Cometary Orbits
  • CCO – (celestial object) Central Compact Object, a compact star in the center of a planetary nebulae
  • CCS – (celestial object) Cool Carbon Star
  • CD – (catalog) Cordoba Durchmusterung
  • CDIMP – (catalog) Catalogue of Discoveries and Identifications of Minor Planets
  • CDM – (astrophysics terminology) Cold Dark Matter, any model for structure formation in the universe that characterize "cold" particles such as WIMPs as dark matter
  • CDS – (organization) Centre de Données astronomiques de Strasbourg
  • CELT – (telescope) – California Extremely Large Telescope, an older name for the Thirty Meter Telescope
  • CEMP – (celestial object) Carbon-Enhanced Metal-Poor, a type of carbon star
    • CEMP-no – (celestial object) Carbon-Enhanced Metal-Poor star with no enhancement of elements produced by the r-process or s-process nucleosynthesis
    • CEMP-r – (celestial object) Carbon-Enhanced Metal-Poor star with an enhancement of elements produced by r-process nucleosynthesis
    • CEMP-s – (celestial object) Carbon-Enhanced Metal-Poor star with an enhancement of elements produced by s-process nucleosynthesis
    • CEMP-r/s – (celestial object) Carbon-Enhanced Metal-Poor star with an enhancement of elements produced by both r-process and s-process nucleosynthesis
  • CEP – (celestial object) CEPheid, a type of pulsating variable star
  • CEPS – (organization) Center for Earth and Planetary Studies
  • CfA – (organization) Center for Astrophysics
  • CFHT – (telescope) Canada-France-Hawaii Telescope
  • CFRS – (observing program), Canada-France Redshift Survey
  • CG – (astrophysics terminology) Center of Gravity
  • CG – (celestial object) Cometary Globule, a Bok globule that show signs of a tail-like extension
  • CG – (celestial object) Compact Galaxy
  • CGCS – (celestial object) Cool Galactic Carbon Star
  • CGRO – (telescope) Compton Gamma Ray Observatory
  • CGSS – (catalog) Catalogue of Galactic S Stars
  • CHARA – (organization) Center for High Angular Resolution Astronomy
  • CIAO – (software) Chandra Interactive Analysis of Observations, software for processing Chandra X-ray Observatory data
  • CIAO – (instrumentation) Coronagraphic Imager with Adaptive Optics, an instrument for the Subaru Telescope
  • CIBR – (celestial object) Cosmic Infrared Background Radiation
    • also CIB
  • CIDA – (instrumentation) Cometary Interplanetary Dust Analyzer, an instrument on the Stardust spacecraft
  • CINEOS – (observing program) Campo Imperatore Near-Earth Object Survey
  • CIO – (catalog) Catalog of Infrared Observations
  • CISCO – (instrumentation) Cooled Infrared Spectrograph and Camera for OHS, an instrument for the Subaru Telescope
  • CM – (astrophysics terminology) Center of Mass
  • CMBR – (celestial object) Cosmic Microwave Background Radiation
    • also CMB, CBR, MBR
  • CMC – (catalog) Carlsberg Meridian Catalogue
  • CMD – (astrophysics terminology) Color-Magnitude Diagram, the Hertzsprung-Russell diagram or similar diagrams
    • also CM
  • CNB – (celestial object) Cosmic Neutrino Background
  • CNES – (organization) Centre Nationale d'Etudes Spatiales, the French Space Agency
  • CNO – (astrophysics terminology) Carbon-Nitrogen-Oxygen, a sequence of nuclear fusion processes
  • CNR – (organization) Consiglio Nazionale delle Ricerche
  • CNSR – (spacecraft) Comet Nucleus Sample Return
  • COBE – (telescope) Cosmic Background Explorer, a space telescope used to study the cosmic microwave background radiation
  • COHSI – (instrumentation) Cambridge OH-Suppression Instrument
  • Col – (catalog) Collinder catalog
  • COMICS – (instrumentation) COoled Mid-Infrared Camera and Spectrometer, an instrument for the Subaru Telescope
  • CGRO – (telescope) COMPton TELescope, another name for the Compton Gamma Ray Observatory
  • COROT – (telescope) COnvection ROtation and planetary Transits, a space telescope for detecting extrasolar planets
  • COSPAR – (organization) COmmittee on SPAce Research
  • COSTAR – (instrumentation) Corrective Optics Space Telescope Axial Replacement, corrective optics for the Hubble Space Telescope
  • CP – (astrophysics terminology) Chemically Peculiar, stars with peculiar chemical compositions
  • CPD – (catalog) Cape Photographic Durchmusterung
  • CRAF – (spacecraft) Comet Rendezvous Asteroid Flyby
  • CSA – (organization) Canadian Space Agency
  • CSBN – (organization) Committee for Small-Body Nomenclature
  • CSE- (celestial object) Circumstellar Envelope, a roughly spherical planetary nebula formed from dense stellar wind if not present before the formation of a star.
  • CSI – (catalog) Catalog of Stellar Identification, a compilation of the catalogs, BD, CD, and CPD
  • CSO – (telescope) Caltech Submillimeter Observatory
  • CSPN – (celestial object) Central Star of Planetary Nebula
    • also CSPNe (plural form of CSPN)
  • CSS – (observing program) Catalina Sky Survey
  • CST – (astrophysics terminology) ConStanT, non-variable stars
  • CSV – (catalog) Catalog of Suspected Variables
  • CTIO – (telescope/organization) Cerro Tololo Interamerican Observatory
  • CTTS – (celestial object) Classical T-Tauri Star
  • CV – (celestial object) Cataclysmic Variable, a type of variable binary star system that contains a white dwarf and a companion star that changes
  • CW – (celestial object) Cepheid W Virginis, a class of Cepheids named after W Virginis, the archetype for the class
    • CWA – (celestial object) Cepheid W Virginis A, a subclass of CW stars that that vary in brightness on timescales of less than 8 days
    • CWB – (celestial object) Cepheid W Virginis B, a subclass of CW stars that vary in brightness on timescales greater than 8 days
  • CXBR – (celestial object) Cosmic X-ray Background Radiation
  • CXO – (catalog) Chandra X-ray Observation, a catalog based from the Chandra space telescope

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