Venus is a terrestrial meteor.
A terrestrial planet , telluric planet , or rocky planet is a planet that is composed primarily of silicate rocks or metals . Venus is the second planet from the Sun , orbiting it every 224.7 Earth days . Venus is a terrestrial planet and is sometimes called Earth 's `` sister planet '' because of their similar size , mass , proximity to the Sun , and bulk composition . It has the densest atmosphere of the four terrestrial planets , consisting of more than 96 % carbon dioxide .