Sources larger than the angular resolution are called extended sources or diffuse sources, and smaller sources are called point sources. {\displaystyle \alpha } divided by . The cookies is used to store the user consent for the cookies in the category "Necessary". }); The highest angular resolutions can be achieved by arrays of telescopes called astronomical interferometers: These instruments can achieve angular resolutions of 0.001 arcsecond at optical wavelengths, and much higher resolutions at radio wavelengths. In the input area, Simply put Aperture diameter and resolution. We can use this formula to estimate the angular resolution of the Hubble Space Telescope. Although many solar system objects are larger than the Moon,. The Angular resolution formula: = 1.22*/d. window.jQuery || document.write('