Essay
The light curve of a Cepheid variable star allows astronomers to infer its mean brightness of 1.9 x10-14 W/m2 and the period of pulsation about 4.8 days.Utilizing the calibrated relation between period and luminosity for Classical Cepheids, its luminosity is estimated to be 8.3 x1029 W.What is the distance to that Cepheid star and, implicitly, the distance to its host galaxy?
Correct Answer:
Verified
Correct Answer:
Verified
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