Boris Vorontsov-Velyaminov
Boris Aleksandrovich Vorontsov-Velyaminov was a Russian astrophysicist. His name is sometimes given as Vorontsov-Vel'yaminov.
He independently discovered the absorption of light by interstellar dust, which was also discovered by Robert Julius Trumpler. He compiled a catalogue of what are now known as Vorontsov-Velyaminov galaxies, as well as a larger and more general catalogue of galaxies. He also studied and classified planetary nebulae. He is also the author of the standard Russian astronomy textbook for high schools as well as astronomy textbook for secondary school.
