cgastineau478 cgastineau478

23-04-2019
Physics

contestada

The period-luminosity relation is critical in finding distances with
A) RR Lyrae stars.B) trigonometric parallaxes.C) spectroscopic parallaxes.D) Cepheid variables.E) pulsars.

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luis1956 luis1956

23-04-2019

D hopefully this helps

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