star distances

Who Used The Radial Pulse Of Cepheid Star To Measure The Distance Of The Star From Earth?

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Who Used The Radial Pulse Of Cepheid Star To Measure The Distance Of The Star From Earth? Leavitt is best known for discovering about 2,400 variable stars How are Cepheid stars used to measure distances? By observing the apparent luminosity, dimmed by the inverse square law of light traveling across the vast reaches of space,

Which Method Is Used To Measure The Distance To The Most Distant Galaxies?

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Which Method Is Used To Measure The Distance To The Most Distant Galaxies? Astronomers estimate the distance of nearby objects in space by using a method called stellar parallax, or trigonometric parallax. Simply put, they measure a star’s apparent movement against the background of more distant stars as Earth revolves around the sun. How do