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

Last updated: August 3, 2021 — Total entries: 5,937