ORB means Observatoire Royal de Belgique Royal Observatory of Belgium in Astronomy
Similar to ORB
ADS - Astrophysics Data SystemADU - Astronomical Distance Unit
AEA - Atomic Energy Agency
AEG - Astro Event Group
AESS - Institute of Electrical and Electronic Engineers - Aerospace and Electronics Systems Society
AET - Accuracy Enhancing Technology
AGN - Active Galaxy Nucleus
View all in Astronomy