Astronomy Abbreviations and Acronyms

1. CRT
   Cathode Ray Tube (type of TV)
2. CSV
   Catalog of Suspected Variables
3. H
   High Frequency
4. ISR
   Instrument Science Report
5. ISS
   International Space Station
6. l
   London
7. l
   Lagrange
8. l
   Luyten
9. M
   Mercury
10. M
    Meter
11. M
    Mira
12. M
    Messier
13. MAR
    Maintenance and Refurbishment
14. N
    Nitrogen
15. N
    Newton
16. N
    Nova
17. NAM
    National Association of Manufacturers
18. NASM
    National Air and Space Museum
19. P
    Pacific
20. S
    Software

Last updated: August 3, 2021 — Total entries: 5,938