Multiple Choice
Type I supernovae have an absolute magnitude of -20. If you discover a Type I supernovae in a distant galaxy that has an apparent magnitude of 22, then how far away is this galaxy?
A) 0.3 Mpc
B) 40 Mpc
C) 1,200 Mpc
D) 2,500 Mpc
E) 3,500 Mpc
Correct Answer:
Verified
Correct Answer:
Verified
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