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badd99 badd99
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As an astronomer, you observe the night sky on a regular basis. One night, you notice a new, bright star visible with the naked eye. Within the next two years, the new star vanishes from sight. Which of the following best describes the object you observed?



a super bright planetary nebula



a white dwarf explosion



a supernova explosion



a red giant explosion

Textbook 
ASTRO

ASTRO


Edition: 3rd
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MspracticalMspractical
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badd99 Author
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Helped a lot
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Thank you, thank you, thank you!
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
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