火か星せい

か

せ

い

Common wordJLPTN1Freq.FrequencyTop 10,000

Meanings

1

The planet Mars. Used in astronomical contexts and everyday conversation.

星せい

です

。

Mars is the planet next to Earth.

将しょう来らい、人にん間げんは火か星せいに住すめるようになるかもしれない。

In the future, humans may be able to live on Mars.

水すい星せいN1
火星 (Mars) and 水星 (Mercury) are different planets that beginners often mix up because both names follow the pattern 〈element〉+星.
金きん星せいN1
火星 (Mars) and 金星 (Venus) share the same 星-based naming pattern, so learners frequently confuse which planet is which.
木もく星せいN1
火星 (Mars) is much smaller and closer to the sun than 木星 (Jupiter), though both names end in 星 and are easily mixed up.

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化か成せい
火星 (かせい) is the planet Mars and is completely unrelated in meaning to 化成 (かせい), a chemistry term for transformation, despite the identical pronunciation.
土ど星せいN1
土星 (Saturn) and 火星 (Mars) both follow the same 〜星 naming pattern for planets, making them easy to confuse.

From Chinese 火星 (huǒxīng), literally 'fire star', referring to its reddish appearance.