This bingo card has a free space and 24 words: Leavitt lived from 1868-1921, She attended Radcliffe College in Massachusetts, The sun is the closest star to Earth, A Cepheid variable is a star whose brightness fluctuates over time, Leavitt discovered 1,777 variable stars outside of the Milky Way, A star is a gigantic ball of plasma, or gas, that uses its own gravity to stay together, When a star is small and bright it is in its hottest state, but when it's larger and dimmer, it's in its cooler state, On a clear night, you can observe up to 2,500 stars, Leavitt lost most of her hearing due to an illness after she graduated college, She discovered over 2,400 variable stars altogether, A standard candle's luminosity is used to measure a distance of a star from Earth, An apparent magnitude is the brightness of a star as viewed from Earth, Leavitt discovered the "Standard Candle" and how it applies to measuring a star's distance, Optic luminosity is the rate at which a star emits light energy from its surface, A variable star expands and contracts regularly, causing it to "twinkle", Edwin Hubble applied Leavitt's "Standard Candle" to his observations of the universe, Henrietta worked at Harvard Observatory for most of her life, studying the stars, At the time of her death, her discoveries were not widely known, Magellanic Clouds are small galaxies outside of the Milky Way, Leavitt studied images, from Peru, of Magellanic Clouds but never actually viewed them in person, Before Henrietta's "Standard Candle", astronomers were only able to measure the distance of 60 stars, A constellation is a group of stars that form a shape or picture, The sun prevents us from seeing other stars during the day because the light it emits is greater than than that of the distant stars and The Magellanic Clouds that Leavitt studied are 160,000 and 200,000 light years away, or roughly 940 quadrillion miles.
Leavitt and the Stars Listening | Leavitt and the Stars Listening | Leavitt and the Stars Listening | Leavitt and the Stars Listening | Henrietta Leavitt
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