Back روبرت يوليوس ترومبلر Arabic روبرت يوليوس ترومبلر ARZ Robert Julius Trumpler Catalan Robert Julius Trumpler German Robert Julius Trumpler Esperanto Robert Julius Trumpler Spanish رابرت جولیوس ترامپلر Persian Robert Jules Trumpler French रॉबर्ट जुलियस ट्रम्पलर Hindi Robert Julius Trumpler Italian
Robert Julius Trumpler (until 1915 Robert Trümpler, October 2, 1886, in Zürich, Switzerland – September 10, 1956, in Berkeley, United States) was a Swiss-American astronomer.