Astronomy Abbreviations and Acronyms

  1. OLT
    Overwhelmingly Large Telescope
  2. OMB
    Office of Management and Budget
  3. OMB
    Office of Management and Budget (U.S.)
  4. OMC
    Orion Molecular Cloud
  5. OMOTENASHI
    Outstanding Moon Exploration Technologies Demonstrated By Nano Semi-Hard Impactor
  6. OMS
    Orbital Maneuvering System
  7. OMS
    Observatory Monitoring System
  8. ONC
    Orion Nebula Cluster
  9. ONR
    Office of Naval Research (U.S.)
  10. ONRAS
    Occasional Notes of The Royal Astronomical Society
  11. OO
    Opal Oscar
  12. OOIG
    Office of Inspector General
  13. OOMB
    Office of Management and Budget
  14. OOTU
    Origin of The Universe
  15. OP
    Outpatient Department
  16. OP
    Optic
  17. OPAG
    Outercplanets Assessment Group
  18. OPAG
    Outer Planets Assessment Group
  19. OPAL
    Orbiting Picosat Automatic Launcher
  20. OPAL
    Oxygen Photometry of The Atmospheric Limb

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