outer planet
noun
: any of the planets Jupiter, Saturn, Uranus, and Neptune whose orbits lie beyond the asteroid belt
Examples of outer planet in a Sentence
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Unlike Jupiter and Saturn, both of which have received dedicated missions like the Cassini probe and the Juno spacecraft, the outer planets have not received any visitors since the Voyager 2 flybys more than 30 years ago.
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Paul Sutter, Space.com, 13 Oct. 2025
Earth's outer planets are at their closest for the year during opposition, according to EarthSky.
—John Tufts, IndyStar, 21 Sep. 2025
Earth's outer planets are at their closest for the year during opposition, according to EarthSky.
—John Tufts, Louisville Courier Journal, 20 Sep. 2025
When in opposition, outer planets are closest to Earth.
—Valerie Mesa, PEOPLE, 19 Sep. 2025
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Paul Sutter, Space.com, 13 Oct. 2025
Earth's outer planets are at their closest for the year during opposition, according to EarthSky.
—John Tufts, IndyStar, 21 Sep. 2025
Earth's outer planets are at their closest for the year during opposition, according to EarthSky.
—John Tufts, Louisville Courier Journal, 20 Sep. 2025
When in opposition, outer planets are closest to Earth.
—Valerie Mesa, PEOPLE, 19 Sep. 2025
See All Example Sentences for outer planet
Cite this Entry
“Outer planet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/outer%20planet. Accessed 25 Oct. 2025.
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