Episode

Astronomy Cast

Wizzard Media

Science & Medicine, Natural Sciences

Chart Positions

Natural Sciences 9
Science & Medicine 33

Astronomy Cast brings you a weekly fact-based journey through the cosmos.

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Ep. 337: Photometry

March 17th, 2014

Episode 370 of 470 episodes

There's a lot you can learn by just staring at an object, watching how it changes in brightness. This is the technique of photometry, and it has helped astronomers discover variable stars, extrasolar planets, minor planets, supernovae, and much more.

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