Cassiopeia

American  

[kas-ee-uh-pee-uh] / ˌkæs i əˈpi ə /

noun

• Cassiopeiae
  genitive

1. Astronomy. a northern constellation between Cepheus and Perseus.

2. Classical Mythology. the wife of Cepheus and mother of Andromeda.

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Cassiopeia ¹ British  

/ ˌkæsɪəˈpiːə /

noun

1. a very conspicuous W-shaped constellation near the Pole Star. Cassiopeia A is a very strong radio and X-ray source, identified as the remnant of a supernova thought to have occurred in the late 17th century

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Cassiopeia ² British  

/ ˌkæsɪəˈpiːə /

noun

1. Greek myth the wife of Cepheus and mother of Andromeda

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Cassiopeia Scientific  

/ kăs′ē-ə-pē′ə /

1. A W-shaped constellation in the Northern Hemisphere near Andromeda and Cepheus.

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Other Word Forms

• Cassiopeian
  adjective

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Example Sentences

See Examples For:

Cassiopeia Cassiopeiae

The Cas A supernova remnant is located 11,000 light-years away in the constellation Cassiopeia.

From Science Daily ● Dec. 12, 2023

From the ground, Apophis will resemble a star traversing the night sky, as bright as the constellation Cassiopeia and slower than a satellite.

From Los Angeles Times ● Feb. 14, 2023

It's a special type of neutron star, called a magnetar, located approximately 13,000 lightyears from Earth in the constellation Cassiopeia.

From Salon ● Jan. 9, 2023

SEI is working on a project called Cassiopeia, which plans to place a constellation of very large satellites in a high Earth orbit.

From BBC ● Oct. 31, 2022

“Alexander is dizzy, and Cassiopeia is in bed with a tummy ache. Would you be so kind as to have the doctor called?”

From "The Interrupted Tale" by Maryrose Wood

The bright central star at the peak of the W is called Gamma Cassiopeiae.

From Time Magazine Archive

Some 40 novae have been found since 1900, but they were all much fainter and farther away than Gamma Cassiopeiae.

From Time Magazine Archive

And imaginative persons have suggested that the outpouring of injurious ultraviolet radiation may be so strong that human beings would have to carry umbrellas coated with lead before venturing under the glare of "Nova Cassiopeiae."

From Time Magazine Archive

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