Robert Kraft, American astronomer and academic (b. 1927) died on May 26, 2015.

May 26, 2015

Robert Kraft, American astronomer and academic (b. 1927) died on May 26, 2015.

Robert Paul "Bob" Kraft 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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