Astronomy Abbreviations and Acronyms

1. XT
   X-Ray Telescope
2. XT
   Xtra-Terresrrial
3. XTLA
   Extended Three Letter Acronym
4. XUV
   Extreme Ultraviolet
5. XUV
   Extreme Ultra-Violet
6. YCAS
   York County Astronomical Society
7. YCO
   York College Omservatory
8. YERAC
   Young European Radio Astronomers Conference
9. YS
   Yellow Straggler
10. YSC
    Yokohama Science Center
11. YSG
    Yellow Super Giant Star
12. YSG
    Yellow Super Giant
13. YSO
    Young Stellar Obbect
14. YSO
    Young Stellar Object
15. ZAC
    Zenith Azimuth Coordinates
16. ZACUBE
    Za Cubesat
17. ZAHB
    "Zero-Age" Horizontal Branch
18. ZAHB
    Zero-Age Horizontal Branch
19. ZAMS
    Zero Age Main Sequence
20. ZAMS
    Zero Age Main Sequence, a star that has just become a main-sequence star (i.e. a star that has begun burning hydrogen in its core)

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