Description: (Russian-American Astronomer Known for His Contributions to Stellar Spectroscopy)
Born into the famous Russian astronomer Struve family, Otto Struve began his career in the USA as a staff member at Yerkes Observatory, investigating stellar spectroscopy. Later, he focused mainly on binary and variable stars, stellar rotation and interstellar matter. He established the presence of hydrogen in interstellar space, a discovery that played significant part in the development of radio astronomy.