Concept explainers
An astronomer measures the speed of recession of a remote galaxy to be 365 km/s using the Doppler principle According to the Hubble relation, about how far away is the galaxy?
The distance of a remote galaxy if speed of recession is
Answer to Problem 1AA
The distance of the distant galaxy is
Explanation of Solution
Given info:
Formula used:
Hubble’s relation
Calculation:
Substitute the given values
Conclusion:
Thus, the distance of the distant galaxy is
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