: any of a class of spiral galaxies that have small compact bright nuclei characterized by variability in light intensity, emission of radio waves, and spectra
called also Seyfert
Examples of Seyfert galaxy in a Sentence
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It is also known as a Seyfert galaxy or a galaxy with an active nucleus.
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Discover Magazine, 6 Feb. 2024
Further, the galaxy NGC 5495 is considered a Seyfert galaxy, with an active galactic nucleus at its core.
—Joshua Hawkins, BGR, 3 Nov. 2022
The dominant member of the Perseus Cluster, Perseus A is a Seyfert galaxy with an active nucleus, powered by a 340-million-solar-mass black hole in its core.
—David J Eicher, Discover Magazine, 19 May 2020
Discover Magazine, 6 Feb. 2024
Further, the galaxy NGC 5495 is considered a Seyfert galaxy, with an active galactic nucleus at its core.
—Joshua Hawkins, BGR, 3 Nov. 2022
The dominant member of the Perseus Cluster, Perseus A is a Seyfert galaxy with an active nucleus, powered by a 340-million-solar-mass black hole in its core.
—David J Eicher, Discover Magazine, 19 May 2020
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'Seyfert galaxy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Seyfert galaxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Seyfert%20galaxy. Accessed 23 Apr. 2024.
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