Distances and redshifts in space

Distances and redshifts in space

C034/5034

Rights Managed

Caption

Diagram illustrating how spectral lines give away galaxy distances. Astronomers have known for some time that there is a correlation between a galaxy’s spectrum and its distance from Earth. The further away the given galaxy, the further the lines in its spectrum are shifted towards longer wavelengths – an effect known as redshift. Astronomers have calibrated this effect, enabling them to estimate the distances to galaxies based on their spectra alone.

Release details

Model release not required. Property release not required.

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