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Robert Kraft (astronomer)

(1927-2015)
American astronomer
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Robert Paul "Bob" Kraft (June 16, 1927 – May 26, 2015) was an American astronomer. He performed pioneering work on Cepheid variables, stellar rotation, novae, and the chemical evolution of the Milky Way. His name is also associated with the Kraft break: the abrupt change in the average rotation rate of main sequence stars around spectral type F8.

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Born
16 June 1927
Seattle, Washington
Died
26 May 2015 (aged 87)
Santa Cruz, California
Zodiac Gemini
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