We Know That the Central Object in a Planetary Nebula

question 37

Multiple Choice

We know that the central object in a planetary nebula has a surface temperature of at least ____ because the nebula contains large amounts of ionized hydrogen.

• A) 5000 K
• B) 10,000 K
• C) 15,000 K
• D) 20,000 K
• E) 25,000 K

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