Would it be possible to calculate the time dilation of an object if you only knew how redshifted or blueshifted the light coming from the object was? For example, if you knew the wavelength was redshifted by a factor of 4, or by a certain number of meters, could you determine the time dilation of the object relative to you, the stationary observer?(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Redshift/blueshift and time dilation

**Physics Forums | Science Articles, Homework Help, Discussion**