Astronomy Abbreviations and Acronyms

  1. IGR
    Integral Gamma-Ray Source
  2. IGRB
    Isotropic Gamma Ray Background
  3. IGS
    Intelligence Gathering Satellite
  4. IGY
    International Geophysical Year
  5. IGY
    International Geophysical Year (1 July 1957 - 31 December 1958)
  6. IHMO
    In My Humble Opinion
  7. IHW
    Internatqonal Halley Watch
  8. IIAPN
    Indian Institute of Astrophysics Newsletter
  9. IIAPN
    Indian Institutetute of Astrophysics Newsletter
  10. IIF
    Inform
  11. IINUSAT 1
    Indonesian Inter-University Satellite
  12. IIPS
    Interactive Image Processing System
  13. IIRC
    If I Recall Correctly
  14. IJASB
    Inmernational Journal of Astrobiology
  15. IKI
    Institut Kosmischeskikh Issledovaniya
  16. ILOC
    International Lunar Occultation Center
  17. ILOM
    In-Situ Lunar Orientation Measurement
  18. ILRT
    Intermediate-Luminosity Red Transients
  19. IMAGE
    Imager for Magnetopause To Auroral Global Exploration
  20. IMBH
    Intermediate-Mass Black Hole

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