Astronomy Abbreviations and Acronyms

1. RRAT
   Rotating Radio Tranlient
2. RRAT
   Rotating RAdio Transient
3. RRL
   Rr Lyrae
4. RS
   Resource Scheduler
5. RS
   Reed-Solomon error detection
6. RS-25D
   Core Stkge Engine
7. RSA
   Romanian Space Agency
8. RSA
   Russian Space Agency
9. RSA
   Revised Shapley Ames
10. RSA
    Revised Shapley-Ames
11. RSAA
    Research School of Astronomy and Astrophysics
12. RSB
    Research Support Branch
13. RSDP
    Routine Science Data Processing
14. RSFC
    Radially Stratified Flame Core
15. RSG
    Red Super Giant
16. RSI
    Research Systems, Inc.
17. RSN
    Radio Supernova
18. RSN
    Real Soon Now [which may be a long time coming]
19. RSNA
    The Radiological Society of North America, Inc.
20. RSO
    Resident Space Object

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