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Definition of Inner planet
1. Noun. (astronomy) Any planet of the Solar System whose orbit is located between the asteroid belt and the sun, i.e., any of Mercury, Venus, Earth, or Mars. ¹
¹ Source: wiktionary.com
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1. Noun. (astronomy) Any planet of the Solar System whose orbit is located between the asteroid belt and the sun, i.e., any of Mercury, Venus, Earth, or Mars. ¹
¹ Source: wiktionary.com