Heinrich Friedrich Siedentopf (1 December 1906 – 28 November 1963) was a German astronomer and physicist.
In 1930, he became an assistant to Heinrich Vogt, then joined the national observatory in Heidelberg.
In 1949, he was a professor at the University of Tübingen,[1] where he later died of a heart attack.
Professor Siedentopf published a total of 146 papers and a textbook.
He studied cosmology, stellar convection,[2] photometry and the zodiacal light.