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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However, probing whether any of these outer planets has an atmosphere is more difficult.
—
Keith Cooper, Space.com, 14 Aug. 2025
Since Neptune and Uranus are very dim and impossible to see with the naked eye, only Saturn, Jupiter and Mars of the outer planets can be seen in the middle of the night.
—Jamie Carter, Forbes.com, 11 Aug. 2025
These hot rocks are also encased inside NASA’s probes to the outer planets and their moons.
—Ross Andersen, The Atlantic, 10 Aug. 2025
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.
—Scott Snowden, Space.com, 18 June 2025
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Keith Cooper, Space.com, 14 Aug. 2025
Since Neptune and Uranus are very dim and impossible to see with the naked eye, only Saturn, Jupiter and Mars of the outer planets can be seen in the middle of the night.
—Jamie Carter, Forbes.com, 11 Aug. 2025
These hot rocks are also encased inside NASA’s probes to the outer planets and their moons.
—Ross Andersen, The Atlantic, 10 Aug. 2025
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.
—Scott Snowden, Space.com, 18 June 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 28 Aug. 2025.
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