catalog at the National Space Science Data Center Soviet Exploration of Venus and Image catalog at Mentallandscape.com Image catalog from the Venera missions Venus page at The Nine Planets Transits of Venus at NASA.gov Geody Venus, a search engine for surface features Interactive 3D gravity simulation of the pentagram that the orbit of Venus traces when Earth is held fixed at the centre of the coordinate system Cartographic resources Map-a-Planet: Venus by the U.S. Geological Survey Gazetteer of Planetary Nomenclature: Venus by the International Astronomical Union Venus crater database by the Lunar and Planetary Institute Map of Venus by Eötvös Loránd University Google Venus 3D, interactive map of the planet Planets of the Solar System Terrestrial planets Astronomical objects known since antiquity