List of Astronomy Acronyms - N


  • N – (celestial object) Nova
  • NACA – (organization) National Advisory Committee on Aeronautics, the older name for NASA
  • NAMN – (organization) North American Meteor Network
  • NAOJ – (organization) National Astronomical Observatory of Japan
  • NAS – (organization) Norsk Astronomisk Selskap, the Norwegian name for the Norwegian Astronomical Society
  • NASA – (organization) National Aeronautics and Space Administration
  • NASDA – (organization) NAtional Space Development Agency
  • NBS – (organization) National Bureau of Standards, an older name for the National Institute of Standards and Technology
  • NCT – (telescope) Nuclear Compton Telescope – a balloon-borne soft gamma-ray (0.2-15 MeV) telescope.
  • NEAP – (spacecraft) Near Earth Asteroid Prospector, a space probe used to study a near-Earth asteroid
  • NEAR – (spacecraft) Near Earth Asteroid Rendezvous, a space probe used to study a near-Earth asteroid
  • NEAT – (observing program) Near-Earth Asteroid Tracking
  • NED – (software) NASA/IPAC Extragalactic Database
  • NEO – (celestial object) Near-Earth Object
    • also NEA – (celestial object) Near-Earth Asteroid
  • NEMP – (celestial object) Nitrogen-Enhanced Metal-Poor star, a type of Carbon star with high amounts of nitrogen
  • NEODyS – (organization) Near Earth Objects Dynamic Site, an Italian web-based service that provides information on near-Earth asteroids
  • NEOIC – (organization) Near Earth Object Information Center, a United Kingdom organization that provides information on near-Earth asteroids
  • NESS – (telescope) Near Earth Space Surveillance, a telescope for observing near-Earth asteroids
  • NESSI – (organization) Near Earth Space Surveillance Initiative, a collaboration planning to use a ground-based telescope to observe near-Earth asteroids
  • NGC – (catalog) New General Catalog
  • NGST – (telescope) Next Generation Space Telescope, an older name for the James Webb Space Telescope
  • NHICAT – (catalog) Northern HIPASS CATalog, the northern extension of the HIPASS catalogue
  • NICMOS – (instrumentation) Near Infrared Camera / Multi Object Spectrometer, an infrared instrument on the Hubble Space Telescope
  • NIMS – (instrumentation) Near-Infrared Mapping Spectrometer, an instrument on the Galileo spacecraft
  • NIR – (astrophysics terminology) Near-InfraRed
  • NIST – (organization) National Institute of Standards and Technology
  • NLTE – (astrophysics terminology) Non-Local Thermodynamic Equilibrium, situations where the temperature, pressure, etc. of a system are not in equilibrium
  • NLTT – (catalog) New Luyten Two-Tenths, a catalog of stars with high proper motions
  • NOAA – (organization) National Oceanic and Atmospheric Administration
  • NOAO – (organization) National Optical Astronomy Observatories
  • NODO – (telescope) NASA Orbital Debris Observatory, a now-defunct telescope used to observe space junk and other objects
  • NOT – (telescope) NOrdic Telescope
  • NPS – (celestial object) North Polar Sequence, a series of stars near the North Celestial Pole once used as standards for measuring magnitudes
  • NRAO – (organization) National Radio Astronomy Observatory
  • NRL – (organization) Naval Research Laboratory
  • NS – (celestial object) Neutron Star
  • NSF – (organization) National Science Foundation
  • NSO – (organization) National Solar Observatory
  • NSSDC – (organization) National Space Science Data Center
  • NSV – (catalog) New Suspected Variable, a catalog of variable stars
  • NT – (astrophysics terminology) Non-Thermal, radiation that is not related to the emission source's temperature (such as synchrotron radiation)
  • NTT – (telescope) New Technology Telescope, a telescope operated by the European Southern Observatory

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