Zeta Boötis
caption: Boötes Constellation
caption: Zeta Bootis imaged with the Nordic Optical Telescope on 13 May 2000 using the lucky imaging method. (The Airy discs around the stars is diffraction from the 2.56m telescope aperture.)
caption: Typical short-exposure image of a binary star, as seen using speckle imaging through the Earth's atmosphere.