Agop Terzan

Agop Terzan (born October 31, 1927) is a French–Armenian astronomer. Born in Istanbul, he received his BA in Mathematical and Astronomical Science in 1945. He received a master's degree in astronomy in 1949, and a PhD from Lyon University in 1965.

He discovered 710 variable stars during the 1960s and 11 globular clusters, including Terzan 5 and Terzan 7 (both discovered in 1968). Subsequently, he discovered 4430 new variable stars. Terzan has also discovered 158 diffuse nebulae, 124 galaxies, and 1428 high proper motion stars.

He is a member of the French National Astronomy Committee and the International Astronomical Union (IAU).

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