Glossary term: Venus (Planet)

Also known as morning star or evening star

Description: Venus is the second rocky planet that revolves around the Sun, at a distance of 0.72 astronomical units. It has an atmosphere 90 times denser than Earth’s, composed mainly of carbon dioxide, which keeps the entire surface of the planet shrouded. Venus's atmosphere produces in a very strong greenhouse effect which results in a surface temperature of 460 degrees Celsius. The day on Venus (244 Earth days) takes longer than the year (244.7 Earth years). This planet is seen with the naked eye at sunrise and sunset.

Related Terms:

See this term in other languages

Term and definition status: This term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".

Related Media

The planet Venus showing white clouds enshrouding the planet

Venus in visible light

Caption: This picture taken by NASA's Mariner 10 probe shows what the planet Venus looks like when looking at it with naked eyes. Venus is enshrouded inside a thick cloudy atmosphere dominated by carbon dioxide, never revealing its hot surface.
Credit: NASA/JPL-Caltech credit link
License: PD Public Domain icons
The planet Venus' surface with ridges and valleys

Venus' surface

Caption: This image is a computer-aided rendering of the surface of the planet Venus. Since visual light cannot penetrate the thick clouds in Venus' atmosphere, the image was obtained with radio waves. NASA's space probe Megallan, launched in 1989 mapped Venus' surface between 1990 and 1994.
Credit: NASA/JPL credit link
License: PD Public Domain icons