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Line 87: ===Telescope array=== The highest angular resolutions for telescopes can be achieved by arrays of telescopes called [[astronomical interferometer]]s: These instruments can achieve angular resolutions of 0.001 arcsecond at optical wavelengths, and much higher resolutions at x-ray wavelengths. In order to perform [[aperture synthesis\|aperture synthesis imaging]], a large number of telescopes are required laid out in a 2-dimensional arrangement with a dimensional precision better than a fraction (0.25x) of the required image resolution. The angular resolution ''R'' of an interferometer array can usually be approximated by

Angular resolution: Difference between revisions