| ASTRON | Stichting Astronomisch Onderzoek in Nederland http://www.astron.nl/ |
| AD n, m | Reference to Applicable Documents n and m (see Section 1.7) |
| AO | Adaptive Optics |
| AT | Auxiliary Telescope (of the VLTI) |
| DDL | Differential Delay Line |
| EPFL | École Polytechnique Fédérale de Lausanne http://www.epfl.ch/ |
| ESO | European Southern Observatory http://www.eso.org/ |
| MACAO | Multi Application Curvature Adaptive Optics |
| PS | Primary Star |
| PSF | Point Spread Function |
| S/N | Signal-to-noise ratio (signal / noise) |
| SeS | Secondary Star |
| STRAP | Tip-tilt corrector at the Auxiliary Telescopes |
| StS | Star Separator |
| VLTI | Very Large Telescope Interferometer http://www.eso.org/projects/vlti/ |