Vlti

List Of Astronomical Interferometers At Visible And Infrared Wavelengths
5 0. 4% 10 ? No imaging on a single baseline instrument Maximum baseline 160m VLTI +UTs AMBER J, H, K simultaneously 400. 0.3 1% 2000 ... Used for a few ... Longest overall VLTI Baseline 130m VLTI +ATs AMBER J, H, K simultaneously 400. 0.3 1% 2000 ... Longest overall VLTI Baseline 130m VLTI +UTs VINCI K 0 ... >1% - 1 ... Longest overall VLTI Baseline 130m VLTI +ATs VINCI K Never checked 0 ... >1% - 1 Longest overall VLTI Baseline 130m VLTI +UTs MIDI N 4.5 0. 10% - 250 Used for a few weeks per year ...

Very Large Telescope - General Information
... or UTs) with optical elements that can combine them into an astronomical interferometer (VLTI), which is used to resolve small objects ... Four 1.8-metre Auxiliary Telescopes (ATs) have been added to the VLTI to make it available when the UTs are being used for other projects ... as a single large coherent interferometric instrument (the VLT Interferometer or VLTI), for extra resolution ...

Astronomical Interferometer - Modern Astronomical Interferometry
... which use this type of instrumentation include VLTI, NPOI, and CHARA ... motion of the star (as used by the Palomar Testbed Interferometer and the VLTI), through the use of nulling (as will be used by the Keck Interferometer and ... VLT concept to form the Very Large Telescope Interferometer (VLTI) ...

Very Large Telescope - General Information - Auxiliary Telescopes
... Although the four 8.2-metre Unit Telescopes can be combined in the VLTI, they are mostly used for individual observations and are only available for ... But the four smaller 1.8-metre ATs are available and dedicated to interferometry to allow the VLTI to operate every night ... As the VLTI acts rather like a single telescope as large as the group of telescopes combined, changing the positions of the ATs means that the VLTI can be adjusted according to the needs of the ...

European Southern Observatory - ESO's Observing Sites in Chile - Paranal - Very Large Telescope
... ESO Very Large Telescope Interferometer or VLTI, allowing astronomers to see details up to 25 times finer than those seen with the individual telescopes ... The light beams are combined in the VLTI using a complex system of mirrors located in underground tunnels where the light paths must be kept equal to distances less than 1/1000 mm over a hundred metres ... With this kind of precision, the VLTI can achieve an angular resolution of milliarcseconds, equivalent to distinguishing the two headlights of a car at the distance of the Moon ...