NASA's Wide-field Infrared Survey Explorer, Gutemberga measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0494 and a diameter of 65.57 kilometers based on an absolute magnitude of 9.8. Alternative mean-diameter measurements published by the WISE team include () and () with corresponding albedos of () and (). On 27 June 2008, an asteroid occultation of Gutemberga gave a best-fit ellipse dimension of (), with a poor quality rating of 1. These timed observations are taken when the asteroid passes in front of a distant star. Notes References External links Wie schnell dreht sich Gutenberg im All? ( 777 Gutemberga), Otmar Nickel, Astronomical Consortium of Mainz (AAG Mainz) Lightcurve Database Query (LCDB), at www.minorplanet.info Dictionary of Minor Planet Names, Google books Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 000777 Discoveries by Franz Kaiser Named minor planets 19140124