planetary nebula
noun
: a usually compact luminous ring-shaped nebula that is composed of matter which has been ejected from a hot star at its center
Examples of planetary nebula in a Sentence
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The snapshot above showcases NGC 1514, a planetary nebula that resides roughly 1,500 light-years from Earth in the constellation Taurus.
—
Sharmila Kuthunur, Space.com, 15 Apr. 2025
Today's photo concerns the planetary nebula NGC 1514.
—Eric Berger, ArsTechnica, 15 Apr. 2025
This small planetary nebula, like others like it, was formed by gases in the outer layers of a dying star.
—Miguel Claro, Space.com, 22 Mar. 2025
This image features a deep field view of the Cassiopeia constellation immersed in the glow of ionized hydrogen gas, where the two small planetary nebulas can be found, Abell 6 and the larger HFG1.
—Miguel Claro, Space.com, 22 Mar. 2025
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Sharmila Kuthunur, Space.com, 15 Apr. 2025
Today's photo concerns the planetary nebula NGC 1514.
—Eric Berger, ArsTechnica, 15 Apr. 2025
This small planetary nebula, like others like it, was formed by gases in the outer layers of a dying star.
—Miguel Claro, Space.com, 22 Mar. 2025
This image features a deep field view of the Cassiopeia constellation immersed in the glow of ionized hydrogen gas, where the two small planetary nebulas can be found, Abell 6 and the larger HFG1.
—Miguel Claro, Space.com, 22 Mar. 2025
See All Example Sentences for planetary nebula
Cite this Entry
“Planetary nebula.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/planetary%20nebula. Accessed 21 May. 2025.
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