Far Out

Summary The measurement and scale of the Universe. How far is a star or a galaxy? Distances are so vast they are described in light years - the distance light travels in a year. Nearby stars are measured by trigonometry - the technique of parallax. Farther out, astronomers use so-called "standard candles". The pulsing and luminosity of Cepheid Variable stars works up to 90-million light years.

S1.E23 ∙ Far Out

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Genres : Documentary

Countries of origin : United Kingdom

Language : English

Summary The measurement and scale of the Universe. How far is a star or a galaxy? Distances are so vast they are described in light years - the distance light travels in a year. Nearby stars are measured by trigonometry - the technique of parallax. Farther out, astronomers use so-called "standard candles". The pulsing and luminosity of Cepheid Variable stars works up to 90-million light years.

Details

Genres : Documentary

Countries of origin : United Kingdom

Language : English

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