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How to Say “太阳系” in Chinese

太阳系 Meaning

/tài yáng xì/

  • formal

The Solar System refers to the gravitationally bound system of the Sun and the objects that orbit it, including the eight major planets, their moons, and countless smaller bodies like asteroids and comets. The mental image is of a vast, spinning cosmic neighborhood with the brilliant Sun at the center, anchored by gravity. In common usage, it is a standard scientific term used in educational, astronomical, or general scientific contexts. It is typically used as a proper noun when referring specifically to our own system, often appearing in discussions about space exploration, cosmology, or science fiction.

A WordDream illustration of 太阳系
A picture makes 太阳系 easier to remember than a definition alone.

What is 太阳系?

The Solar System is the planetary system located in the Orion Arm of the Milky Way galaxy. It consists of the Sun and everything bound to it by gravity, including eight planets, dwarf planets, and millions of other celestial bodies. It is the only known planetary system to harbor life.

太阳系 in Conversation

Discussing space with a child

  • Parent: 你知道太阳系里有几大行星吗?Do you know how many major planets there are in the Solar System?
  • Child: 我知道,一共有八个!I know, there are eight in total!

Used here to introduce basic scientific knowledge to a child.

Science documentary

  • Narrator: 太阳系形成于约四十六亿年前。The Solar System formed approximately 4.6 billion years ago.
  • Narrator: 它是银河系中极其微小的一部分。It is an extremely tiny part of the Milky Way galaxy.

Formal register suitable for educational content.

Examples

  1. 地球在太阳系中。

    The Earth is in the Solar System.

    /dì qiú zài tài yáng xì zhōng 。/

  2. 科学家正在研究太阳系的起源。

    Scientists are studying the origin of the Solar System.

    /kē xué jiā zhèng zài yán jiū tài yáng xì de qǐ yuán 。/

  3. 人类对太阳系的探索从未停止。

    Humanity's exploration of the Solar System has never ceased.

    /rén lèi duì tài yáng xì de tàn suǒ cóng wèi tíng zhǐ 。/