Why Can Type I Supernovae Be Used to Determine a Galaxy's

question 59

Multiple Choice

Why can Type I supernovae be used to determine a galaxy's distance?

• A) Type I supernovae occur only in very luminous galaxies.
• B) Type I supernova have approximately the same luminosity.
• C) Type I supernovae have approximately the same size.
• D) A Type I supernova occurs in a typical galaxy about once every 100 years.

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