N-type star

astronomy

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July 1, 2026

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An N-type star, also known as a Type N star or carbon star, is a red star with a surface temperature of approximately 2,000 kelvins. These stars are characterized by their spectral type, which indicates a higher abundance of carbon than oxygen, leading to the presence of carbon compounds in their spectra. N-type stars are typically giant or supergiant stars and are considered cooler and redder compared to stars in the O-M spectral sequence.123

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stellar classification
…cool stars include R and N (often called C-type, or carbon stars: less than 3,000 K), and S, which resemble class M stars but have spectral bands of zirconium oxide prominent instead of those of titanium oxide.
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…cool stars include R and N (often called C-type, or carbon stars: less than 3,000 K), and S, which resemble class M stars but have spectral bands of zirconium oxide prominent instead of those of titanium oxide.
Read More