livyk2015 livyk2015
  • 25-03-2024
  • Mathematics
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A globular cluster contains an RR Lyrae star with an observed pulsation period of 16 hours and an average apparent magnitude of 17.2. What is the distance (in kpc) to the globular cluster? If you measure the angular diameter to be 19 arc minutes, what is the linear diameter (in pc)?

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