Cambridge Optical Aperture Synthesis Telescope
COAST , the Cambridge Optical Aperture Synthesis Telescope , is a multi-element optical astronomical interferometer with baselines of up to 100 metres , which uses aperture synthesis to observe stars with angular resolution as high as one thousandth of one arcsecond ( producing images with much higher resolution than can be obtained using individual telescopes such as the Hubble Space Telescope ) . 
<triplet> Cambridge Optical Aperture Synthesis Telescope <subj> astronomical interferometer <obj> instance of