inferior planet
noun
: either of the planets Mercury and Venus whose orbits lie within that of the earth compare superior planet
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As always, extreme caution must be taken when observing an inferior planet to never point a telescope or binoculars near the rising or setting sun, as doing so can permanently damage your vision.
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Anthony Wood, Space.com, 31 July 2025
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Anthony Wood, Space.com, 31 July 2025
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“Inferior planet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inferior%20planet. Accessed 4 Nov. 2025.
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