Astronomy Abbreviations and Acronyms

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

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