February 19, 2017

Homework Help: Astronomy

Posted by Dre on Tuesday, November 30, 2010 at 10:54pm.

Which of the following distance measuring techniques works to measure distances to other galaxies beyond the Milky Way? CHECK ALL THAT APPLY
A) Hubble's Law
B) main sequence stars
C) Cepheid variable stars
D) parallax
E) radar ranging
F) galaxy rotation
G) white dwarf supernovae

I believe the answers are B, C, and G. Could someone please tell me if I'm right and explain this to me?

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