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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Launched in 1977, both Voyager 1 and Voyager 2 were designed to take advantage of a rare planetary alignment to conduct flybys of the outer planets.
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Scott Snowden, Space.com, 18 June 2025
That same day, Jupiter will square Saturn, as both outer planets transit the early degrees of their respective Cardinal signs.
—Valerie Mesa, People.com, 4 June 2025
Crystalline water ice, Xie explained, is known to be found in various places within our solar systems—from some of the moons of the outer planets to Saturn's rings, comets and other rocks that make up the Kuiper Belt at the edge of the solar system.
—Ian Randall, MSNBC Newsweek, 15 May 2025
In our own neighborhood, Hubble has studied the changing weather on the outer planets, discovered moons orbiting Pluto and watched the once-in-a-lifetime impact of Comet Shoemaker-Levy 9 on Jupiter scar the giant planet with dark spots as big as Earth.
—Meghan Bartels, Scientific American, 24 Apr. 2025
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Scott Snowden, Space.com, 18 June 2025
That same day, Jupiter will square Saturn, as both outer planets transit the early degrees of their respective Cardinal signs.
—Valerie Mesa, People.com, 4 June 2025
Crystalline water ice, Xie explained, is known to be found in various places within our solar systems—from some of the moons of the outer planets to Saturn's rings, comets and other rocks that make up the Kuiper Belt at the edge of the solar system.
—Ian Randall, MSNBC Newsweek, 15 May 2025
In our own neighborhood, Hubble has studied the changing weather on the outer planets, discovered moons orbiting Pluto and watched the once-in-a-lifetime impact of Comet Shoemaker-Levy 9 on Jupiter scar the giant planet with dark spots as big as Earth.
—Meghan Bartels, Scientific American, 24 Apr. 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 18 Jul. 2025.
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