How might the presence of intergalactic dust

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How might the presence of intergalactic dust as an agent for dimming the light from ever more distant stars affect the determination of distances when determining distances using Cepheid variable stars? Explain your reasoning.

How might the presence of intergalactic dust as an agent for dimming the light from ever more distant stars affect the estimation of distances using the method of ‘spectroscopic parallax'? Explain your reasoning.

Reference no: EM132450436

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