: an equatorial constellation south of Pisces and Aries

Examples of Cetus in a Sentence

Recent Examples on the Web
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Saturn started June within the boundaries of the non-zodiacal constellation of Cetus the Whale, then crossed into Pisces the Fishes on June 3. Joe Rao, Space.com, 9 June 2026 The galaxy, called Messier 77 (M77), is located 45 million light-years from Earth in the Cetus constellation, according to the European Space Agency, which partners with NASA on the James Webb Space Telescope mission. Staff Author, PEOPLE, 17 May 2026 Saturn Saturn, lurking near the border of the constellations Cetus the Whale and Pisces the Fishes, sneaks up in the east around the start of morning twilight. Joe Rao, Space.com, 2 May 2026 The galaxy in question is NGC 941, located around 55 million light-years away from Earth in the constellation Cetus. Robert Lea, Space.com, 3 Mar. 2026 According to the story, Andromeda was chained to a rock as Cetus approached to devour her. Joe Rao, Space.com, 16 Nov. 2025 They were forced to offer their daughter as a sacrifice to Cetus to keep their entire kingdom from being ravaged by the sea monster. Mike Lynch, Twin Cities, 19 Oct. 2025 The left corner of the square, meanwhile, is the head of Andromeda, who, according to legend, Perseus was saving from the leviathan Cetus (also called the Whale). Jesse Emspak, Space.com, 22 Aug. 2025 Squid in the Whale Spiral galaxy Messier 77, also called the Squid Galaxy, sits 45 million light-years away in the constellation Cetus (The Whale). Laura Baisas, Popular Science, 23 Apr. 2025

Word History

Etymology

Latin (genitive Ceti), literally, whale

First Known Use

1675, in the meaning defined above

Time Traveler
The first known use of Cetus was in 1675

Cite this Entry

“Cetus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Cetus. Accessed 31 Jul. 2026.

Kids Definition

: a group of stars seen above the equator and south of Pisces and Aries
Etymology

Latin, literally, "whale"

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