What method do scientists use to tell how far a galaxy is from earth?

1 Answer
chandramohanPanakkal
Jan 4, 2016

Using a powerful telescope they find some stars which have quality known as standard candles whose brightness in known.in the Galaxy.

Explanation:

This may be a Cepheid variable ot Type ! supernova which can be used as a standard candle.We know the relation ship of dimming of light as per distance Inverse square law,.So distances can be calculated..

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