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Glossary term: 泰坦

Description: 土衛六(泰坦)是土星最大的衛星。它比月球和水星都大,是太陽系中第二大的衛星。除地球外,土衛六是唯一已知表面有液態大洋、海和河流的天體。不過,這些都是由被稱為碳氫化合物的化學物質構成的。土衛六被認為有一個岩石核心和一個由水構成的冰殼。人們認為冰殼下的液態水可能孕育著生命。土衛六的大氣層很厚,主要由氮氣構成,這使得它在照片上看起來非常光滑。

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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

This is an automated transliteration of the simplified Chinese translation of this term

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


Saturn's moon Titan, its atmosphere of dense clouds leads to an almost uniform orange-yellowish appearance

Titan in natural colours

Caption: This image taken by NASA's Cassini spacecraft in January 2012 shows Saturn's moon Titan in near natural colours. The orange-yellowsh colour stems from a layer of partially charged hyodrocarbon compounds. In the visible light, Titan's surface remains largely hidden below the opaque atmosphere.
Credit: NASA/JPL-Caltech/Space Science Institute credit link

License: PD Public Domain icons


Titan is round and this false colour image shows its surface as green with a large H-shaped dark patch

Titan with surface features

Caption: This composite image taken by NASA's Cassini spacecraft in November 2015 visualises infrared radiation from Saturn's moon Titan. Infrared light can penetrate its hazy atmosphere and reveal some of its surface features. During its decent to the surface, the piggy-backed ESA lander Huygens discovered lakes made of liquid hydrocarbons.
Credit: NASA/JPL/University of Arizona/University of Idaho credit link

License: PD Public Domain icons

Related Activities


Children's Planetary Maps: Titan

Children's Planetary Maps: Titan

astroEDU educational activity (links to astroEDU website)
Description: Learn about the only other known body in the Solar System with Seas and Lakes

License: CC-BY-4.0 Creative Commons 姓名標示 4.0 國際 (CC BY 4.0) icons

Tags: Maps , Planetary cartography , Spatial thinking
Age Ranges: 6-8 , 8-10 , 10-12
Education Level: Middle School , Primary , Secondary
Areas of Learning: Social Research
Costs: Low Cost
Duration: 2 hours
Group Size: Group
Skills: Analysing and interpreting data , Asking questions , Communicating information , Constructing explanations , Developing and using models , Engaging in argument from evidence , Planning and carrying out investigations