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PIONIER (Very Large Telescope)

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Precision Integrated-Optics Near-infrared Imaging ExpeRiment

Alternative names	PIONIER
Part of	Very Large Telescope Interferometer
First light	November 2010
Telescope style	astronomical instrument
[edit on Wikidata]

The Precision Integrated-Optics Near-infrared Imaging ExpeRiment (PIONIER) is a visiting instrument at the ESO's Paranal Observatory,^[1] part of the VLTI astronomical observatory. It combines the light from four telescopes simultaneously and provide 0.002 arc seconds of angular resolution, the equivalent angular resolution of a 100 m telescope.^{[citation needed]}

PIONIER has been built at LAOG and has been installed at VLTI in November 2010.^{[citation needed]}